| Code | Inspector |
| A | O.W. Aimsworth Colt M1873 S.A. .45 Revolvers 1873-1874 |
| AAH | Andrew A. Harwood Cdr., USN Ames Flask 1818-1846 |
| AAJ | Unknown M1903 Rifles 1930 |
| AAW | A.A. Whiste 1905-1906 |
| AB | A. Buckminister Sample Carbines 1860 |
| ABB | A.B. Blackington Starr & Colt M1860 Revolvers 1860-1862 |
| ABF | Arctiibald B. Fairfax Lt., USN 1823-1843 |
| AC | Alexander Cameron Colt 1940 |
| ACD | A.C. Dieffenbach Ensign, USN Remington-Lee M1884 Rifles 1893-1894 |
| ACM | Alfred C. Manning 1863 |
| ACP | A.C. Perrin Capt., USA Colt 1935 |
| ACT | A.C. Trego Capt., USA Smith & Wesson .45 M1917 Revolvers 1918 |
| ADK | A.D. King Colt 3Rd Model Dragoon, Colt M1851 Colt M1861 and Starr Revolvers, Ames M1840 Heavy Dragoon Saber 1850-1865 |
| AF | Abonijad Fogt 1818-1822 |
| AFC | A.F. Cameron Smith & Wesson New Model No.3 Turkish .44 Revolver 1875 |
| AGB | A.G. Bennett Remington Navy Revolvers, Ward Burton Rifles 1868-1879 |
| AGP | Anson G. Perkins 1859-1863 |
| AH | Asabel Hubbard Barrels and Stocks, Whitney and Starr Muskets and Johnson Pistols, Waters .69 Flintlock Muskets 1813-1847 |
| AHC | Archibald H. Ceiley 1862-1863 |
| AHC | A.H. Clark Springfield M1868 Rifles 1859-1879 |
| AHF | Andrew H. Forsythe Colt M1911 .45 Pistol 1917 |
| AHGL | A.H.G. Lewis 1906 |
| AHK | Albert H. Kirkham 1862-1863 |
| AHN | A.H. North 1862 |
| AHT | Albert H. Thompson 1862 |
| AJB | Aldeige J. Bessette Colt 1940 |
| AJB | A.J. Bristol Remington Navy Revolvers, Shanps Trial Carbines 1870-1879 |
| AJH | A.J. Hall 1904 |
| AJL | Unknown Leather Goods, Rock Island, Early 1900'S |
| AJM | Albert J. Meyers Maj., USA Navy Signal Pistol M1861 Ano Army Signal Pistol M1862 |
| AL | A. Lavidine 1894-1909 |
| ALH | A.L. Hallstrom Colt M1911 .45 Pistols and Smith & Wesson Revolvers 1916-1917 |
| ALK | Albert L. Koones USN Batty Peace Flask 1862-1865 |
| ALW | A.L. Woodworth Colt .38 Revolvers 1905-1928 |
| AMB | Unknown Linder .58 Carbine 1862 |
| AMC | A.M. Cooley 1901-1910 |
| APC | A.P. Casey Army & Navy Percussion Double Action Revolvers, Smith & Wesson Schofield .45 Revolvers 1859-1861, 1875 Revolvers, Colt Gatling Guns, Remington-Lee Rifles 1861-1886 |
| APC | A.P. Cobb 1874 |
| AR | Alexander Reuben 1862-186S |
| AR | Adam Rhulman Harpers Ferry Muskets and Rifles 1835-1854 |
| ARW | Abraham R. Wooley Capt., USA Muskets 1813 |
| ASG | Albert S. Granger 1862 |
| AW | Unknown Navy Yard, New York Mark Ii Signal Pistols 1906 |
| AWE | Arthur W. Evans Lt., USA Remington-UMC M1911 .95 Pistol 1917-1918 |
| AWH | A.W. Hatch 1903 |
| B | Paul M. Busby Lt., USA Remington-UMC M1911 .45 Pistol 1917 |
| BBL | B.B. Lombaru 1898 |
| BFJ | B.F. James 1904-1906 |
| BFL | B.F. Lougharan 1906 |
| BFQ | B.F. Quimby 1863 |
| BH | Benjamin Hannis Allen & Wheelock, Colt M1860, Remington Elliott, Savage Figure 8 and Starr Revolvers 1861 |
| BH | Benjamin Huger Maj., USA 1854-1858 |
| BHM | Unknown M1903 Rifles 1906-1909 |
| BL | Benjamin Lamphear Filed Locks 1798 |
| BL | B. Lyon 1875 |
| BM | Benjamin Moore North Pistols, Waters .69 Flintlock Muskets 1810-1817 |
| BRW | B.R. Whitcomb 1899 |
| BS | B. Syrett 1898 |
| C | See Apc |
| C | A.P. Casey Colt M1873 S.A. .45 Revolvers 1875 |
| C | Cloue 1844-1854 |
| CAB | Charles A. Brand Lt., USN Smth & Wesson M1889 .38 Revolvers, Lee-Winchester 6mm Rifles 1899-1900 |
| CAW | C.A. White 1904-1905 |
| CB | Cyrus Buckland 1841 |
| CB | Charles Boarman Capt., USN Batty Peace Flask 1847 |
| CBC | Calvin B. Cross 1862-1863 |
| CCH | C.C. Hubbard 1906 |
| CCM | Charles C. Morrison Lt., USA Colt M1873 S.A. .45 Revolvers 1879-1882 |
| CCV | Unknown M1903 .30 Rifles 1906-1909 |
| CD | C. Davis 1905-1906 |
| CD | C. Drommer 1898-1910 |
| CDS | G.D. Shattuck Colt M1860 .44 Revolvers |
| CEB | C.E. Buckland 1859 |
| CEE | C.E. Evans 1905-1906 |
| CEF | Unknown Rock Island Leather Goods 1902 |
| CES | Charles E. Sherman 1842-1847 |
| CES | Clarence E. Simpson Colt 1939 |
| CEW | Charles E. Wilson 1862 |
| CF | C. Foot Locks 1829-1841 |
| CFD | Charles F. Dupee Colt 1937-1938 |
| CFL | C.F. Lewis 1863 |
| CFR | Charles F. Rogers Colt 1917 |
| CFU | C.F. Ulrich Gunner, USN Colt and Smith & Wesson Revolvers 1905 |
| CG | Calven Gay Evans, J.J. Henry & Boulton Pistols 1818-1831 |
| CGC | C.G. Chandler Remington Beals .36 and .44 Remington M1861, 44 3Rd Model Dragoon |
| CGC | Charles G. Curtis Henry .44 Rifles 1862-1863 |
| CGH | Charles G. Howe Lt., USA Colt 1917 |
| CHH | C.H. Hunt 1864 |
| CHP | C.H. Parker 1902 |
| CHW | C.H. Wicker 1904 |
| CJ | Catesby Jones Capt., USN Evans M1828 Pistols and Barrels 1831-1832 |
| CJV | C.J. Van Amburgh Colt Machine Guns 1912 |
| CLB | C.L. Bartlett 1904-1910 |
| CMB | C.M. Boyington 1901-1910 |
| CN | Unknown M1903 Rifles, Rock Island 1913 |
| CNG | Charles N. Goudrich 1862-1863 |
| CON | Unknown Navy M1894 Signal Pistol |
| CP | Charles Packard Springfield Pistols 1818 |
| CPH | Charles P. Hill 1874 |
| CPL | C.P. Lynn 1906 |
| CR | Cadwalader Ringold Capt., USN 1828-1862 |
| CRB | C.R. Bunker 1875 |
| CRS | Curtis R. Stickney Remington M1871 .50 Pistols, Sharps and Springfield Rifles 1871 |
| CS | Clark Swallow 1862 |
| CSC | Charles S. Cotion Lt., USN 1863-1864 |
| CSL | C.S. Leonard 1875 |
| CSL | Charles S. Lowell Maj., USA Starr D.A. .44 and M1860 .44 Colt Revolvers 1858-1861 |
| CSR | Charles S. Reed Maj. ., USA Colt 1938-1940 |
| CTJ | C.T. Judd 1863 |
| CV | C. Valentine 1898-1905 |
| CW | Charles Williams Harpers Ferry and North Pistols, Starr Sw0Rds and Waters .69 Flintlock Muskets 1807-1814 |
| CW | Charles Woodman Smith & Wesson Model 3 Russian 2Nd and 3Rd Model .44 Revolver, Smith & Wesson 2Nd Model Schofield .44 Revolver 1876-1877 |
| CWB | C.W. Bacon 1875 |
| CWH | C.W. Hartwell 1831-1850 |
| CWK | Christo W. Kantany Civilian Colt Rifles M16 and M16A1 1966-1968 |
| CWS | C.W. Snook Ames M1840 Light Artillery Saber 1864 |
| DA | Daniel Ammen Lt., USN Batty Peace Flask 1836-1878 |
| DAL | D.A. Lyle Lt., USA Colt M1873 S.A. .45 Smith & Wesson 1St, 2Nd and N0. 3Rd New Model Schofield .44 Revolvers 1876-1880 |
| DAL | Unknown M1903 Rifles 1919-1930 |
| DAP | Dwight A. Perkins 1862 |
| DAT | Unknown M1865 Spencer Carbine Stocks |
| DAT | D.A. Turner Colt M1911 .45 Pistols 1914-1915 |
| DC | Daniel Cotton Lockmaker 1798 |
| DD | Daniel Dunsmore Gunner, USN Remington Revolvers 1861-1868 |
| DFC | David F. Clark Remington-Lee, Hotchkiss Rifles, Colt, Starr, Remington and Savage Revolvers, Colt Gatling Guns 1861-1886 |
| DFM | Dexter F. Mosman Emerson & Silver M1860 Light Cavalry Sareir 1862-1864 |
| DJD | D.J. Davis 1904-1906 |
| DL | D. Legro 1826-1831 |
| DMK | David M. King Lt., USA Colt 1898-1905 |
| DMT | Daniel M. Taylor Capt., USA Colt .38 Revolvers 1892 |
| DP | Daniel Pettibone Evans, Henry and Miles Muskets, Henry, Fry and Shuler Pistols, Henry Rifles, Rose Swords 1808-1809 |
| DPS | Daniel P. Strong 1862 |
| DR | Daniel Reynolds, USN Ames Cutlass and Dahlgren Bayonets 1863 |
| DR | David Rice Stocks 1835-1863 |
| DT | Daniel Taylor Lt., USA Starr Muskets 1831-1850 |
| DT | Daniel Tyler Waters .69 Flintlock Muskets 1831-1834 |
| DW | Decius Wadsworth Col., USA 1802-1821 |
| DWM | D.W. Massey 1909 |
| DWT | D. Waldo Tyler 1862 |
| E | Arthur W. Evans Lt., USA Remington-UMC M1911 .95 Pistol 1917-1918 |
| E | Charles Eberle 1807-1811 |
| EA | Epaphroditius Allis Springfield Pistol 1815-1818, 1818-1841 |
| EAE | E.A. Elliott 1894-1910 |
| EAG | E.A. Gowrle 1902-1909 |
| EAG | E.A. Graves 1894-1902 |
| EAH | E.A. Hendrick 1894 |
| EAK | E.A. Kingsbury 1904-1906 |
| EAM | E.A. May 1819-1831 |
| EAW | E.A. Williams Spencer Carbines 1865 |
| EB | Elizur Bates Waters Model 1836 Pistol 1841-1846 |
| EB | Edward Barrett Lt., USN Remington Rolling Block M1866 Pistols |
| EB | Edmund Byrne Lt., USN 1814-1850 |
| EB | Unknown Re-Furbished Rifles, Rock Island Late 1940'S |
| EBB | E.B. Boutwell Cdr., USN Batty Flask 1828-1850 |
| EBB | Edgar B. Boyd 1862 |
| EBP | E.B. Peck Colt 1898, 1902-1913 |
| EC | E.R. Cuoley M1807 Springfield Musket |
| ECB | Edmund C. Bailey 1862 |
| ECP | Edward C. Perry Colt 1937-1940 |
| ECW | E.C. Wheeler Springfield, Ward Burton and Spencer Rifles, Remington Navy Revolvers 1862-1882 |
| EDM | Unknown M39 20mm Gun, Pontiac Division Of General Motors |
| EEC | E.E. Chapman Maj., USA Remington-UMC M1911 .45 Pistol 1918-1919 |
| EF | E. Ferrar Starr M1858 .44 Revolvers 1860-1868 |
| EF | Edgar Freeman Lt., USN 1817-1828 |
| EF | Edward Flather 1862-1863 |
| EFD | E.F. Dunbar 1875 |
| EFJ | E.F. Jarrard Holsters Rock Island 1902 |
| EH | Unknown M1808 Springfield Musket |
| EH | Ethan Hancock 1918 |
| EH | Edward Hooker Lt.Cdr., USN Remington M1867 Pistol 1867 |
| EHD | Elbert H. Dewey Colt M1911 .45 Pistols M1903 .30 Rifles 1909-1917 |
| EHP | E.H. Pearson 1898 |
| EHP | Edwin H. Perry 1862 |
| EHS | E.H. Schmitten Leather Goods, Rock Island |
| EJ | Unknown M1812 Springfield Musket |
| EJ | Unknown M1842 Springfield Musket |
| EJF | E.J. Frost Barrels 1864 |
| EJK | E.J. Kernan 1909-1910 |
| EJS | E.J. Sghoch 1904-1906 |
| EKC | E.K. Colton 1860-1864 |
| ELB | E.L. Bolles 1902 |
| ELF | Elbert L. Ford Lt. Col., USA Colt 1938-1941 |
| ELV | Unknown M1903 .30 Rifles Rock Island 1913-1917 |
| ELW | Edson L. Wood Colt 1940 |
| ELW | E.L. Wunler, USN Colt 1903 |
| EM | Edwin Martin 1862 |
| EM | Edward Mc Cue 1862 |
| EMC | E.M. Camp Colt M1860 .44 Percussion Revolver 1860-1863 |
| EMCF | Earl Mcfarland Col., USA M1 .30 Rifle 1942-1943 |
| EMD | Edward M. Dustin Burnside Carbines 1862-1863 |
| EMK | E.M. Kelsey 1904-1906 |
| EML | E.M. Lovering 1909 |
| EMT | E.M. Tinkham 1898-1906 |
| EO | Unknown M1903 Rifles, Rock Island 1913-1917 |
| ES | Elisha Shaw Forged Springs 1796 |
| ESA | E.S. Allin Civil War Rifles and Muskets, Model 1871 .50-70 Rolling Block Rifles 1850-1871 |
| ESF | Edward S. Frost Stocks 1862-1863 |
| ET | Edwin Tyler 1813-1819 |
| ET | Elisha Toby North M1816 Navy, M1819 and M1826 Pistols, M1818 Springfield Pistols and R. Johnson, Starr and Waters Muskets 1816-1820, 1823-1824 and 1826-1830 |
| EWB | E.W. Blake 1818 |
| EWB | E.W. Bruce 1875 |
| EWC | E.W. Clark 1870-1879 |
| EY | Unknown M1831 Springfield Musket |
| F | Richard Falley Charleville Muskets 1798-1801 |
| FAM | F.A. Massey 1903-1906 |
| FAR | Frances A. Roe Lt., USN Colt M1860 Army Revolvers |
| FB | Frank Baker Maj., USA Colt M1909 .45 Revolvers 1909-1917 |
| FBA | F.B. Austin Colt M1911 .45 Auto Pistol 1917 |
| FBT | Unknown Colt M1860 .44 Revolvers |
| FC | Francis Camp 1859-1861 |
| FC | F. Chillingworth 1875 |
| FCW | Frank C. Warner Civilian Remington M1866 .50 Rf Pistols, Whitney .36 Percussion Revolvers, Plymouth Rifles, M1867 Remington Navy Carbine 1867-1869 |
| FDH | Filser D. Horrert Colt 1940 |
| FDL | Unknown Joslyn Carbines 1862 |
| FER | F.E. Randell 1906 |
| FEW | F.E. Willson 1901-1906 |
| FEW | F.E. Wyman Colt 1909 |
| FFH | F.F.Hull 1905-1906 |
| FGF | F.G. Fishier 1899-1902 |
| FH | Fred Hanvey 1862 |
| FH | Frank Heath Capt., USA Colt M1873 S.A. .45 Revolvers 1883-1884 |
| FH | Unknown Colt M1859 Revolving Carbine Bayonet |
| FHE | F.H. Elwell 1894-1910 |
| FHS | Frank H. Schofield Lt., USN Smith & Wesson and Colt M1895 .38 Revolvers, Gatling Gun Mark 1 1897-1901 |
| FHT | Feno H. Traux Lt., USA Hi-Standard .22 Pistols 1941-1942 |
| FJA | Frank J. Atwood Lt. Col., USA M1911A1 .45 Auto Pistols Made By Ithaca, Union Switch & Signal and Remington Rand, Remington .30 M1903A3 Rifles, National Postal Meter .30 M1 Carbine 1942-1944 |
| FK | Frank Krack Rock Island Inspector, Renumbered and Mutilated Colt M1911A1 .45 Pistols, M1903A3 Rifles 1940 |
| FKM | Unknown Dahlgren L2Lb Boat Howitzer 1858 |
| FL | Unknown M1842 Springfield Musket |
| FLH | F.L. Hosmer Colt M1911 Pistols and Colt Revolvers 1898-1923 |
| FLW | Unknown Re-Furbished Rifles, Rock Island 1920'S and 1930'S |
| FMC | F.M. Chapin 1898 |
| FMR | Francis M. Ramsey Cdr., USN Remington M1866 Pistol Pattern Brass Trigger Guards, Navy Signal Pistol M1861 1870 |
| FR | Erank Richard Springfield 1871 |
| FR | Frederick Rodgers Cdr., USN Remington M1874 .44 Revolvers 1870 |
| FR | Franklin Root 1862-1863 |
| FRB | F.R. Bull Sample Arms 1860 |
| FRM | Unknown Army Signal Pistol M1861 |
| FSL | F.S. Leonard 1899-1902 |
| FSN | F.S. North 1862-1863 |
| FSS | Frederic S. Strong 1862 |
| FTC | Frank T. Cleveland Colt M1873 S.A. .45 Revolvers |
| FW | Unknown Schnitzler & Kirschbaum M1840 Heavy Dragoon Saber |
| FWA | F.W. Adams 1904-1906 |
| FWM | F.W. Macher 1906 |
| FWS | F.W. Sanderson Stocks, Remington Trial Arms 1862-1879 |
| FZ | Unknown Re-Furbished Rifles, Rock Island Late 1940'S |
| GAL | George A. Lawrence Stocks 1862-1863 |
| GAM | George A. Macguder Capt., USN 1855 |
| GAS | G.A. Spooner 1899-1910 |
| GAW | George A. Woody Lt. Col., USA M1 .30 Rifle, Colt 1929-1932 and 1941-1944 |
| GAW | George A. White 1875 |
| GBA | G.B. Allen 1894-1902 |
| GBF | George B. Foote 1862-1864 |
| GBR | George B. Russell Cavalry Equipment 1862-1863 |
| GC | George Curtis 1861 |
| GCS | G.C. Schnell 1905 |
| GD | G. Dillingham 1875 |
| GD | G. During 1898-1910 |
| GDF | G.D. Fisk 1875 |
| GDG | Gilbert D. Greason 1861 |
| GDL | George D. Little Ens., USN Colt M1860 .44 Revolvers 1862-1865 |
| GDR | G.D. Ramsey Jr. Capt., USA 1863-1865 |
| GEC | G.B. Cruzen Remington M1861 New Model Revolver 1861 |
| GEC | George E. Chamberlain 1862-1879 |
| GEG | George E. Goll Civilian 1940-1944 .45ACP M1928A1 Savage Sub-Machine Gun |
| GEM | G.E. Miller 1905-1906 |
| GES | George E. Saunders 1862 |
| GEW | G.E. Worgen 1905-1906 |
| GF | George Flegel Waters Muskets and Deringer Rifles 1812-1823 |
| GF | George Flyn Locks 1824 |
| GFB | George F. Bowen 1878 |
| GFG | G.F. Gray 1904-1906 |
| GFM | George F. Morrison Lt., USN Starr S.A. .44 Revolvers 1864 |
| GFT | George F. Tucker 1862 |
| GG | Guert Gansevoort Cdr., USN Remington New Model Percussion Revolvers, Colt and Whitney Converted Revolvers, Dahlgren Bayonets, Ames Cutlass Aston M1842 Pistol 1850-1861 |
| GGB | George G. Bowe Stocks 1862-1863 |
| GGS | G.G. Saunders Colt Dragoon Revolvers 1856 |
| GH | George Haines 1860 |
| GH | George Hosmer Remington M1870, Ward Burton and Spencer Rifles 1862-1869 |
| GHD | Guy H. Drewry Lt. Col., USA Smith & Wesson .38 Revolvers, Colt .45, 38 and .22 Revolvers and Pistols, Winchester and Underwood M1 Carbines, Colt Ace .22 Pistol 1930-1946 |
| GHD | George H. Dupee 1862-1863 |
| GHG | George H. Graham 1862 |
| GHH | George Hubbard 1862-1863 |
| GHM | G.H. Munroe 1899-1900 |
| GHS | Gustavus H. Scott Cdr., USN Colt M1860 .44 Revolvers 1828-1873 |
| GHS | Gilbert H. Stewart Col., USA Smith & Wesson M1917 and Colt M1917 .45 Revolvers, Colt M1911 and M1911A1 .45 Pistols 1915-1919, 1938-1940, M1 .30 Rifle 1942 |
| GJM | G.J. Mc Callin 1902 |
| GKC | George K. Charter Starr Navy Revolvers 1861 |
| GKJ | G.K. Jacobs Amoskeag M1861 .58 Musket 1865-1875 |
| GLP | G.L. Prentice 1875 |
| GLW | G.L. Wotkyns, USA Colt 1926 |
| GMC | George M. Colvocresses Cdr., USN Whitney Revolvers 1863-1867 |
| GMR | George M. Ransom Capt., USN Colt M1851 Converted Revolvers 1854-1877 |
| GP | George Palmer 1862 |
| GP | Giles Porter Remington New Model and Pettengill Revolvers 1862-1875 |
| GPH | George F. Howland Colt 1939 |
| GRC | Unknown Remington New Model .44 Revolvers |
| GRG | G.R. Goring M1903 Rifles 1906-1910 |
| GRH | George R. Harrington 1901 |
| GSM | G.S. Morse Starr Revolvers 1862 |
| GT | Georoe Talcott Lt., USA 1836-1838 |
| GTA | G.T. Allen 1898 |
| GTB | George T. Balch Capt., USA Colt and Savage Revolvers 1861-1862 |
| GTR | Garland T. Rowland Capt., USA Colt 1932-1934 |
| GTW | G.T. Weaver 1894 and 1898-1899 |
| GW | George Wells Lt., USN Aston Pistols 1845-1862 |
| GW | George Wright Aston Pistols 1850-1852 |
| GWB | Unknown 3 Inch Artillery 1902 |
| GWC | George W. Chapin Starr Revolvers 1862 |
| GWH | George W. Hamlin Colt M1851 Revolvers 1846-1852 |
| GWH | George W. Hartwell 1845-1855 |
| GWH | George W. Hagner I845-1846 |
| GWM | George W. Mc Kee Capt., USA 1874-1878 |
| GWP | G.W. Patch Colt 3Rd Model Dragoon 1846-1858 |
| GWR | George W. Rodgers Cdr., USN Colt M1851 .36 Revolvers 1839-1859 |
| GWS | G.W. Schuman Colt Dragoon Revolvers 1858-1860 |
| GWS | G.W. Shierman Colt Dragoon Revolvers 1858-1860 |
| GWS | G.W. Smith Colt Dragoon Revolvers 1857 |
| GWS | G.W. Sword Colt Dragoon Revolvers 1856 |
| GWW | George W. Wassner Colt 1939 |
| GZ | G. Zauclle 1905-1906 |
| H8 | Horace Burpee Amoskeag M1861 .58 Musket 1862-1865 |
| HBB | Hanson B. Bullock 1862 |
| HBC | H.B. Cooley 1862-1863 |
| HBH | H.B. Hart 1875 |
| HBJ | H.B. Johnson Remington Beals Navy Revolver 1862 |
| HCW | H.C. Washburn 1904-1906 |
| HD | Unknown Leather Goods, Rock Island, Early 1940'S |
| HD | Unknown Smith & Wesson Victory Revolvers 1942-1945 |
| HD | H. Dana 1862-1863 |
| HDH | Henry D. Hastings 1862 |
| HDJ | Henry D. Jennings 1862-1863 |
| HDW | H.D. White 1898 |
| HE | Henry Erben Cdr., Uns Remington M1867 ,50 Pistol 1867 |
| HEH | H.E. Hollister 1862-1863 |
| HEK | Unknown Leather Goods, Rock Island 1908 |
| HEM | H.E. Madden 1902 |
| HEV | Henry E. Valentine 1862 |
| HEW | H.E. Wallenberg 1906 |
| HFL | Harry F. Lunch Colt 1939-1940 |
| HGF | H.G. Firmin Remington M1868 and M1869 Rifles, Remington Navy Revolvers, Sharps, Spencer, Enfield Rifles 1868-1882 |
| HGG | H.G. Gould 1898 |
| HHD | H.H. Denny 1898 |
| HHE | Harold H. Eames Ensign, USN Remington-Lee M1884 Rifles |
| HHH | H.H. Hartzell |
| HHH | H.H, Hamilton Sharps Rifles |
| HHP | Henry H. Perkins North Pistols and Starr Swords, Waters .69 Flintlock Muskets 1810-1817 |
| HJL | Harold J. Labonte Colt 1939 |
| HJM | H.J. Melurun Colt 1898 |
| HK | Henry Kirk 1862-1864 |
| HK | H. Kane 1902 |
| HK | N. Kouschakewitsch Capt., Imperial Russia Smith & Wesson Model 3 Russian 2Nd and 3Rd Model .44 Revolver |
| HKC | Henry Knox Craig Maj. , USA Waters M1836 Pistols 1837-1838 |
| HKH | Henry K. Hoff USN Whitney Revolvers, Sharps & Hankins Carbines 1865 |
| HLL | H.L. Lathrope Colt M1R60 .44 Revolvers 1862 |
| HM | Henry Metcalfe Lt. , USA Smith &, Wesson Model N0. 3, 1St Model 44 Revolver 1871 |
| HM | H. Murdock 1875 |
| HMB | H.M. Brooks Colt Revolvers 1902-1906 |
| HN | Henry Nettleton Remington Lee and Winchester Hotchkiss .45-70 Rifles, Colt M1873 S.A. .45, Remington Mi875 S.A. .45, Smith & Wesson N0. 3 New Model .44 Revolvers, Colt Gatling Guns 1876-1880 |
| HO | Henbert 0'Leary Maj. USA Colt 1926-1929 |
| HR | Harold Richards Colt 1940 |
| HRB | Howard R. Booth Colt 1940 |
| HS | H. Saunders 1875 |
| HS | Horace Scott 1878-1885 |
| HS | Harrison Shaler Remington-Rand M1911A1 .45 Pistols 1945 |
| HS | Harris Smith 1862-1879 |
| HS | H. Stephens Lt. , USA Starr Swords 1816 |
| HS | Howard Stockton Lt., USA 1868 |
| HS | H. Syrett 1904-1906 |
| HSH | H.S. Hill Springfield 1875 |
| HSL | Homer S. Lathe 1862 |
| HT | H. Tracy 1831-1850 |
| HTH | Unknown M1861 Springfield Musket, M1866 Cadet Rifle |
| HW | Henry Walke Com., USN Remington M1866 Pistols 1866-1868 |
| HWH | Harry W. Hunt 1899-1902 |
| HWK | Herbert W. Kerr Colt 1940 |
| HWW | Henry W. Wilcox Colt M1860 .44 Revolvers |
| IB | Isack Bartlett Forged Lockplates 1808 |
| ICC | Unknown Re-Furbished Rifles, Rock Island 1920'S and 1930'S |
| IFC | Unknown Krag .22 Conversions, M1903-05 Springfield Rifles |
| IH | Isaac Hull Capt., USN 1809 |
| IJA | Issac Arnold Jr. Lt.Col., USA M1892 .30 Krag Rifles, M1903 and M1905 .30 Rifles |
| IR | I. Randall 1904-1906 |
| J | Unknown Colt M1873 S.A. 45 Revolvers 1875 |
| JA | Joel Abbot Lt., USN 1812 |
| JA | J. Arnold Jr 1869-1871 |
| JA | John Avis Waters Flintlock Pistols 1837-1838 |
| JAB | John A. Bell Lt., USN Colt M1895, M1902 and Smith & Wesson M1902 Revolver 1902-1903 |
| JAB | John A. Brooks Jr. Lt.Col., USA Colt 1940 |
| JAD | John A. Dahlgren M1861 Navy Signal Pistols, 12 Pounder Boat Howitzer 1861 |
| JAG | James A. Greer L,T., USN 1848 |
| JAH | John Howell Cdr USN M1882 Navy Signal Pistols |
| JAJB | James A.J. Bradford Capt., USA Hall Carbines 1833-1835 |
| JAW | J.A. Wood 1875 |
| JAW | J.A. Woodward 1906 |
| JB | James Bell 1827 |
| JBC | J.B. Cooley 1898 |
| JBC | J.B. Craig 1896-1902 |
| JBH | Joseph B, Hayes Colt 1940 |
| JBK | John H. Kirkham Locks 1823-1841 |
| JBL | Unknown Remington M1903A3 Rifles 1942-1944 |
| JBT | J.B. Tyler 1893 and 1899-1910 |
| JC | James Carrington Whitney, Blake & Starr Muskets 1803-1804 |
| JC | James Chattaway Sample Arms 1862-1863 |
| JC | J. Clancy 1905-1907 |
| JCA | J.C. Ayers Colt Gatling Guns 1881-1883 |
| JCB | John C. Beaumont Lt., USN I.N. Johnson Pistols, Ames Pistols and Cutlass 1852-1855 |
| JCB | Joseph C. Bragg R. Johnson, Waters, Ames Pistols, Colt Dragoon Revolvers, Starr Revolvers 1846-1849 |
| JCP | J.C. Parker 1905-1906 |
| JCS | John C. Sharpe Lt., USN 1837 |
| JCS | John C. Stebbins North-Hall Carbines, Waters Pistols and Navy Derringer Rifles 1834-1841 |
| JCS | John C. Symmes Capt. , 1847-1861 |
| JD | J. Dowlar Stocks and Barrels 1811 |
| JD | Joseph Dale M1815 and M1818 Springfield Pistol Lockmaker 1815-1818 |
| JDJ | J.D. Johwson M1819 North Pistol Barrels 1819-1822 |
| JDM | J.D. Mc Intyre Capt., USA Colt 1926 |
| JEC | J.E. Connoli.Y 1902 |
| JEC | Joseph E. Craig 1898-1906 |
| JEC | Joseph Edger Craig Lt., USN 1861-1869 |
| JEC | J.E. Cummings 1862-1863 |
| JEG | John E. Greer Capt., USA Colt and Whitney Revolvers 1876-1883 |
| JEH | J.E. Hitchcock 1862-1863 |
| JEH | Jay E. Hoffer Maj., USA Colt .38 Revolvers, Gatling Guns 1903 |
| JEN | Unknown Holsters, Rock Island 1900 |
| JEW | Unknown Leather Goods 1918 |
| JFC | J.F. Coyle M1903 Rifles 1906-1907 |
| JFEC | J.F.E. Chamberlian Smith & Wesson 1St and 2Nd Model Schofield 45 Revolvers 1875 |
| JFH | John F. Harlan M1 .30 Rifle 1953 |
| JFR | J,F. Riley 1898-1910 |
| JFS | J.F. Sullivam 1898-1908 |
| JG | John Garvin Lt., USN Colt Revolvers 1875 |
| JGB | J.G. Benton Lt.Col., USA 1866-1881 |
| JGB | John G. Butler Capt., USA Colt M1873 S.A. .45 Revolvers 1887 |
| JGF | J.G. Flagg 1894-1900 |
| JGW | J.G. Woodbury 1904 |
| JH | Joseph Hannis M1838 Waters Pistols 1838-1862 |
| JH | Joseph Hall Amoskeag M1861 .58 Musket 1864 |
| JH | John Hannis 1862 |
| JH | James Harris R. Johnson, I.N. Johnson Pistols and Colt 1851 Revolvers 1837-1851 |
| JH | John Hawkins Starr M18617 Rifles 1841-1852 |
| JH | James Hawkins Colt 2Nd Model Dragoons 1848 |
| JH | Joseph Harniss Starr M1817 Rifles, Waters M1836 Pistols 1841-1844 |
| JH | John Hill 1813-1835 |
| JHB | John H. Barrett Major, U.S.A. ? - 1919 .30 M1903 Riples. ,45 ACP M1921 Sub-Machine Gun |
| JHC | J.H. Cooper Remington M1868, Cadet M1869 Rifles and Remington Navy Revolvers 1870-1871 |
| JHD | J.H. Doyle 1894 |
| JHE | J.H. Ewig 1898 |
| JHF | J.H. Fletcher 1909 |
| JHG | J.H. Griffth Civilian, USN Whitney Revolvers 1862 |
| JHH | J.H. Howarth 1899-1910 |
| JHH | Joseph H. Hubbard 1862 |
| JHL | J.H. Lyons 1898 |
| JHM | James H. Mc Guire 1862 |
| JHP | Unknown M1928 .45 Thompson Sub-Machine Gun |
| JHW | J.H. Wowarth 1898 |
| JJC | John J. Callahan Colt 1940 |
| JJC | John J. Cornwell Cdr., USN 1847-1867 |
| JJJ | Unknown Joslyn Carbines 1862 |
| JJL | J.J. Lee 1898 |
| JJL | John J. Lynch Colt 1940 |
| JJM | J.J. Murphy 1898 |
| JK | J. Kimball 1875 |
| JKB | Unknown Gibbs .52 Carbine 1862 |
| JKB | J.K. Burbank 1901-1910 |
| JKC | John K. Christmas Lt. Col., USA Singer M1911A1 .45 Pistol 1942 |
| JL | Joseph Lanman Lt., USN Ames Pistols, Cutlass and Flask 1837-1845 |
| JL | J. Lipped 1875 |
| JL | Joseph Lumbaru Swords 1818 |
| JLC | Joseph L. Cottle Colt M1860 .44 and M1873 S.A. .45 Revolvers 1863-1875 |
| JLD | J.L. Doppman Jr. Colt 1936 |
| JLG | James L. Guion Col., USA M1 .30 Rifles 1950-1953 |
| JLH | James L. Hatcher Maj. USA Colt 1938 |
| JLH | James L. Henderson USN Colt M1851 and M1861 .36 Revolvers 1858-1861 |
| JLP | Unknown Colt .38 Revolver 1902 |
| JLS | J.L. Sticht Lt., USN Smith & Wesson and Colt M1895 .38 Revolvers 1895-1904 |
| JLS | J.L. Strong 1896-1902 |
| JM | John Maggs 1862 |
| JM | Julian Mcallister Maj., USA 1865 |
| JM | J. Mills 1875 |
| JM | Joseph Morgan North and Cheney Pistols 1798-1802 |
| JM | Justice Murphy 1841 |
| JM | Justin Murphy Jenning, Pomeroy, Starr, Springfield Mfg. Co., Waters North and R. Johnson 1813-1833 |
| JMBC | J.M.B. Clitz Capt., USN Remington Rolling Block M1870 Pistols 1867 |
| JMC | J.M. Crighton 1894-1910 |
| JMG | J.M. Gilbert Lt.Col., USA Colt Revolvers and M1911 .45 Pistols 1917-1918 |
| JN | John Newbury R.Johnson, Starr, North Springfield, Pomeroy, Waters 69 Flintlock Muskets 1817-1826 |
| JN | John Nicholson Sr. Musket Barrels 1797-1798 |
| JN | John Nicholson Jr. 1799-1807 |
| JN | John Norman 1830 |
| JNB | J.N. Boyer 1905-1906 |
| JNH | J.N. Hemenway 1907 |
| JNJ | John N. Jordan Lt., USN Winchester-Lee 6mm Rifles 1891-1895 |
| JNS | Unknown Leather Goods, Rock Island |
| JNS | J.N. Sollaceo 1831-1850 |
| JO | J. 0'Malley 1896-1902 |
| JOB | J.O. Bush Barrel Inspector |
| JP | James Perkin 1815 |
| JP | Jacob Perkins Waters .69 Flintlock Muskets 1819-1821 |
| JP | Joseph Perkins 1798 |
| JP | John Pope Lt., USA 1843 |
| JPC | James P. Chapman Ames M1843 Pistol 1848 |
| JPF | J.P. Farley Capt., USA Smith & Wesson and Colt Revolvers 1874-1876 |
| JPL | Unknown Re-Furbished Rifles, Rock Island 1941-1955 |
| JPM | J.P. Mc Guinness Lt., USN Smith & Wesson and Colt Revolvers 1905 |
| JPO | James P. Oeller Lt., USN J.J. Henry, Boulton Pistols, Batty Peace Flask 1809-1848 |
| JPO | J.P. 0'Neil 1904-1910 |
| JPW | Joseph P. Wells 1863 |
| JR | J. Reid 1904-1910 |
| JR | Unknown Colt M1861 Conversion Revolvers |
| JRD | J.R. Dearborn 1894, 1901-1906 |
| JRE | John R. Edie Capt., USA Colt 1874 |
| JRE | John R. Esleek Parts Of Arms 1863 |
| JRG | John R. Guldsbourough Capt., USN Whitney Revolvers, Colt M1851 and M1861 Revolvers, Savage Navy Revolvers 1864 |
| JRG | J.R. Graham 1875 |
| JRJR | James Rockwell Jr. Lt., USA Smith & Wesson Schofield Revolvers 1874-1876 |
| JRM | J.R. Mc Ginness Capt., USA 1868-1869 |
| JRMM | J.R.M. Mullany Lt., USN Colt M1851 .36 Revolvers |
| JS | Unknown, Csa London Armoury Co., Kgrr Percussion Revolvers 1861-1865 |
| JS | Jacob Shough Henry, Fry and Guest Pistols, Henry Rifles 1809-1811 |
| JS | Joseph Smith Capt., USN 1809-1837 |
| JS | Josiah Snell North & Cheney Pistols 1800-1801 |
| JS | John Stahl 1868 |
| JS | John Stebbins L819-1835 |
| JS | James Stillman 1831-1850 |
| JS | James Stubblefield Harpers Ferry M1807 and M1807 Pistols, Harpers Ferry Rifles and Muskets 1807-1821 |
| JS | John Symington Col., USA M1855 Springfield Rifles and Muskets 1832-1863 |
| JS | Unknown Re-Furbished Rifles Rock Island 1930'S |
| JSA | Unknown Krag Rifles, Springfield M1903 Rifles 1902, 1909-1917 |
| JSB | J.S. Burns 1898-1910 |
| JSB | John S. Breen Capt., USA Colt .22 Service Model Ace Pistols 1936-1937 |
| JSC | J.S. Chauncey Cdr., USN 1812 |
| JSC | J.S. Cooley 1898 |
| JSD | John S. Dexter 1798 |
| JSD | James S. Dudley Lt., USA Colt M1860 and Starr .44 Revolvers 1861-1870 |
| JSD | John S. Duston 1862-1863 |
| JSP | James S. Palmer Lt., USN Adams Navy Flask 1836-1846 |
| JT | Joseph Tarbell Capt., USN 1798-1815 |
| JT | John Taylor Colt M1860 ,44 Revolvers, Starr and Savage .36 Revolvers, Sharps New Model 1859 Military Rifle 1861-1862 |
| JT | Josiah Tatnel Capt., USA Massachusetts Arms G0. Adams Revolvers 1858 |
| JT | Jerome Towne 1862-1863 |
| JTB | James T. Baden Lt., USA Remington, Starr and Savage Revolvers 1862-1864 |
| JTC | John T. Cleveland Colt M1873 S.A. .45, Smith & Wesson and Savage Revolvers 1856-1877 |
| JTT | John T. Thompson Capt., USA Colt M1900 .38 Pistols, Colt .45 and Smith & Wesson M1899 .38 Army Revolvers 1896-1902 |
| JW | Joseph Weatherhead Waters .69 Flintlock Muskets, North M1819 Pistols and Starr, Waters, R. Johnson and Pomeroy Muskets and Rifles 1821-1822, 1825 and 1829 |
| JW | John Wilder Enfield, Sharps and Spencer Rifles 1868 |
| JW | John Williamson Capt., USA 1838-1849 |
| JWA | J.W. Alden 1905-1906 |
| JWE | J.W, Ewig 1898-1910 |
| JWK | John W. Keene 1862-1863 |
| JWK | John W. Kelly Lt., USN Remington and Starr .44 Revolvers 1853-1864 |
| JWL | Unknown M1868 Rifles |
| JWM | James W. Mc Coy Colt .38 Revolvers 1927-1929, 1938 |
| JWP | J.W. Porter |
| JWR | James W. Reilly Maj., USA Remington .44 Revolvers 1859-1895 |
| JWR | James W. Ripley General, USA 1832-1860 |
| KLH | Unknown M1855 Springfield Musket 1858 |
| KM | Kenneth Morton Maj., USA Colt 1905 .45 Pistol 1907-1908 |
| KMD | K.M. Dennon 1896 |
| KO | Kasavery Ordinetz Capt., Imperial Russia Smith & Wessdn Model 3 Russian Lst and 2Nd Model .44 Revolver |
| KSM | Kelley S. Morse Winchester M1895 Rifles, Smith & Wesson M1899 38 Revolvers. Colt M1911 .45 Pistols, Gatling Guns 1893-1915 |
| L | Samuel B. Lewis Colt M1873 S.A. .45 Revolvers 1875 |
| L | Laley 1844-1854 |
| L | Davld A. Lyle Lt., USA Smith & Wesson 1St and 2Nd Model Schofield 44 Revolvers 1876-1880 |
| LAA | Unknown Re-Furbished Rifles, Rock Island 1920'S and 1930'S |
| LAB | Lester A. Beardslee Lt.Cdr., USN Starr Revolvers 1860 |
| LAS | Lawrence A. Stone Lt., USA Colt 1940 |
| LBC | Luke B. Chase USN Batty Peace Flask, Bayonets, Ames Cutlass, Aston Revolvers 1850-1861 |
| LBF | Leon B. Fanning Colt 1938 |
| LC | Lyman Converse Spencer Rifles 1863 |
| LCA | Lucian C. Allin Colt Dragoon, Massachusetts Arms Co., Adams and Starr Revolvers 1859 |
| LCB | L.C. Brown 1874 |
| LD | Lewis Draper Colt 1876 |
| LD | L. Dustin Purchased Arms and Parts 1863 |
| LF | Lewis Foster Jr. Waters M1836 Pistols 1837 |
| LG | Lewis Ghriskey Stocks and Barrels 1811 |
| LGG | L.G. Gilmore 1896-1904 |
| LJM | L.J. Megette 1898 |
| LJP | Laurance Phelen Colt 1939-1940 |
| LL | Luther Luge 1841 |
| LLK | L.L. Kuralt 1905-1910 |
| LM | L. Menz 1907 |
| LMF | Lewis M. Ferry 1863 |
| LN | L. Newell Sharps and Springfield Rifles, Bayonets, Swords 1876-1885 |
| LOH | L.O. Hale 1902-1906 |
| LP | L. Papanti 1898 |
| LPD | L.P. Dustin 1894 |
| LS | Luther Sage North M1813, M1816 and M1819 Pistols, R. Johnson, Waters, Whitney, Pomeroy and Starr Muskets, Springfield M1815 and M1818 Pistols 1813-1836 |
| LTT | Unknown Remington M1903A3 .30 Rifles 1942-1944 |
| LW | Leicaster Wheeler 1818 |
| M | Benjamin Moore North Pistols, Waters .69 Flintlock Muskets 1810-1817 |
| MD | Mario Dippolito Colt 1939 |
| MD | Maurice Distel Colt 1939 |
| MEH | M.E. Hawkins 1898 |
| MER | Mark E. Reynolds Colt 1937 |
| MH | Michael Hayes Colt M1860 Revolvers 1860 |
| MLM | Moses L. Morse 1822-1824 |
| MM | M. Moulton Savage and Colt M1851 .36 Revolvers. Palmer Carbines, Ames M1840 Light Artillery Saber 1861-1864 |
| MM | Unknown Holsters, Rock Island 1900 |
| MMC | M.M. Custer 1906-1910 |
| MMJ | Martin M. Johnson 1862-1863 |
| MPB | M.P. Benjamin 1899-1910 |
| MPL | M.P. Lomax Maj., USA Waters and H. Johnson Pistols and Hall. Carbines 1837-1843 |
| MRM | M.R. Marsh Colt .38 Revolvers 1898 |
| MS | Maurice Sherman Colt 1940 |
| MTK | Martn T. Krepps 1862-1863 |
| MTW | Marine T. Wlckham Evans Muskests and North Pistols, Harpers Ferry 1811-1815 |
| MW | M. Witkop 1909 |
| MWC | M.W. Carr 1862-1863 |
| MWM | M.W. Morley Purchased Arms 1862 |
| NB | Nehemiah Baden Lt., USA North M1816 Pistol 1813-1820 |
| NCT | Nathan C. Twining L,T., USN Colt M1895 .38 Revolvers, Winchester-Lee 6mm Rifles 1885-1895 |
| NF | Noah Foot 1824 |
| NF | Nathan Forbes 1798-1801 |
| NFR | Norman F. Ramsey Brg. Gen., USA M1 .30 Rifle 1944-1945 |
| NL | N. Leclair 1905-1906 |
| NLB | N.L. Benoit 1900-1904 |
| NO | Noble Orr North and Cheney Pistols, Whitney Muskets 1798-1802 |
| NW | Nathaniel Whiting 1862 |
| NWP | Nahum W. Patch Colt Walker and 1 St Model Dragoon Revolver, Ames & R. Johnson Pistols, Starr Rifles and North-Hall Carbines, Waters .69 Flintlock Muskets 1831-1849 |
| OA | Oliver Allen North M1816 Pistols 1816-1818 |
| OAT | O.A. Thornton 1907-1910 |
| OD | Otis Dudley North, Hall Rifles 1830 |
| OEG | Unknown Leather Goods 1918 |
| OHP | Oliver H. Perry Lt., USN Stimpson Navy Flask 1829-1845 |
| ONP | O.N. Perkins 1898 |
| ORG | O.R. Graham 1875 |
| ORH | Orvin R. Hayden Colt 1938 |
| OS | Oliver Serton I841 |
| OWA | O.W. Aimsworth ,Smith & Wesson N0.3 .44 M1869, Remington and Colt Percussion and Conversion Revolvers, Colt Gatling Guns 1831-1870 |
| PAT | P.A. Teham 1907-1910 |
| PB | Peter Barrett Gunner, USN Colt M1860 and M1861 Revolvers 1861-1868 |
| PB | Pomeroy Booth 1862 |
| PBBH | P.B.B. Havens 1875 |
| PC | P. Chapman Civilian, USN 1844 |
| PC | Pierce Crosby Cdr., USN Norfolk Navy Yard Brass Trigger Guards On Remington M1866 .50 Pistols, Whitney Navy Revolvers 1870 |
| PG | Peter Getz 1803 and 1806-1808 |
| PG | Philip Gustafson Holsters Rock Island 1902 |
| PHMB | P.H.M. Brooks 1909-1910 |
| PJD | Peter J. Diffley Lt., USA Colt 1941 |
| PJK | P.J. Kiley 1901-1906 |
| PK | P. Keller 1904-1906 |
| PMB | Paul M. Busby Lt., USA Remington-UMC M1911 .45 Pistol 1917 |
| PNC | Unknown Starr M1R63 .44 Revolvers |
| PTC | Patrick Thomas Cunningham Lt., USN 1863-1864 |
| PTS | P.T. Safford 1874 |
| PV | P. Valentine Purchased Anms 1862 |
| PW | Unknown Joslyn Carbines 1863 |
| QEL | Unknown M1903 Rifles, Rock Island 1913-1917 |
| R | Unknown M1 Rifle Stocks |
| RAC | Rinaldo A. Carr Colt .38 and .45 Revolvers and Pistols, Gatling Guns 1889-1909 |
| RA-P | Unknown Remington M1903A3 Rifles 1942-1944 |
| RAP | Ray A. Pillivant Lt., USA Colt Automatic Pistols, Harrington & Richardson .22 Rifles 1938-1941 |
| RB | Robert Beals Colt 1862 |
| RB | Roger Birnie Jr. Lt., USA 1879-1880 |
| RB | Robert Blanchard North, Hall Carbines 1831 |
| RBC | R.B. Chamberlain 1906 |
| RC | Robert Corbit Lock Filer 1798 |
| RC | Russel Curtis M1815 and M1818 Springfield Pistol Stocks 1818 |
| RC | Rufus Chandler Ames M1844 and M1845 Pistols, Ames Cutlass 1831-1850 |
| RCD | R.C. Downie Lt.Col., USA Union Switch & Signal M1911A1 .45 Pistols 1943 |
| RCW | Russel C. Wilson Hi-Standard .22 Pistols 1941 |
| RDD | R.D. Draper 1905-1906 |
| RE | R. Ellis 1818 |
| RHB | R.H. Bailey Cadet M1869 Remington Rifles, Sharps Trial Carbines 1870-1885 |
| RHKW | Robert Henry Kirkland Whiteley Capt., USA Aston Navy Pistols, Colt Dragoon and M1851, Starr and Savage Revolvers, Sharps Carbines L838-1875 |
| RJ | Robert Johnson 1822-1826 |
| RJF | Russel J. Fournier Colt 1937 |
| RKA | Remick K. Arnold 1862-1877 |
| RL | Roswell Lee Waters .69 Flintlock Muskets 1817-1830 |
| RLB | Rufus L. Baker Capt., USA 1818-1820 |
| RLB | Unknown Remington M1903A3 Rifles 1942-1944 |
| RLB | R.L, Buckland Sample Arms 1860 |
| RM | R. Matthews 1906 |
| RMC | Unknown Rock-Ola, Quallty Hardware .30 M1 Carbines |
| RMD | R.M. Dennon 1895-1902 |
| RMH | R.M. Hill Maj., USA 1875-1876 |
| RNS | R.N. Stannard 1906 |
| RO | Robert Orr North and Cheney Pistols, Whitney Muskets 1798-1808 |
| RP | Ricnard Paine Civilian, USN Ames Pistols and Jenks Carbines By Ames and Remington, Ames Bullet Moulds, M1842 Deringer Pistol 1843-1848 |
| RP | Richard Parker Lt., USA 1838-1847 |
| RPB | R.P. Barry Capt., USA Remington, Starr, Rogers & Spencer Revolvers 1860-1865 |
| RPB | Robert P. Beales 1862-1879 |
| RPP | Robert P. Parrott Capt., USA 1836 |
| RS | Rufus Sibley Waters .69 Flintlock Muskets 1814-1815 |
| RS | Richard Smith Lt.Col., USMC 1806-1830 |
| RS | Robert Sears Col., USA Colt M1911A1 .45 Pistols and Colt Service Ace 12 Pistols 1940-1945 |
| RSJ | R.S. Johnson Colt 1940 |
| RSL | Robert S. Lamotte Capt., USA Sharps Rifles 1861-1869 |
| RTS | R.T. Safford 1862-1885 |
| RWC | R.W. Chandler Smith & Wesson, Colt Revolvers 1917 |
| RWH | Unknown Rebuilt Standard Products .30 M1 Carbines |
| RWM | Robert W. Mc Neely 1890 |
| RWM | Richard W. Meade Cdr., USN Colt M1851 and M1861 Converted Revolvers 1860-1867, 1873-1876 New York Navy Yard |
| RZC | R.Z. Crane USA Colt 1935 |
| S | Shaeffer 1844-1854 |
| S | Gilbert H. Stewart Col., USA Smith & Wesson M1917 .45 Revolver 1915 |
| S11 | Unknown Colt M1911 .45 Pistols 1918 |
| S14 | Unknown Colt M1911 .45 Pistols 1917-1918 |
| S15 | Unknown Colt M1911 .45 Pistols 1918 |
| S2 | Unknown Smith & Wesson M1917 .45 Revolver 1918 |
| S24 | Unknown Smith & Wesson M1917 .45 Revolver 1918 |
| S5 | Unknown Colt M1911 .45 Pistols 1917-1918 |
| S6 | Unknown Smith & Wesson M1917 .45 Revolver 1918 |
| S8 | Unknown Colt M1911 .45 Pistols 1918 |
| SA | Samuel Alexander 1808-1810 |
| SA | S. Adams 1860 |
| SAD | S.A. Dinsmore 1862-1863 |
| SB | Samuel Barron Lt., USN 1827-1845 |
| SBL | Samuel B. Lathrope 1818 |
| SC | Silas Crispin Capt., USA Remington M1861 Revolvers 1862 |
| SC | Samuel Cushing Lt., USN Army Signal Pistol M1861 |
| SCR | Stephen C. Rowan Cdr., USN Colt M1851 Conversion Revolvers 1850-1860 |
| SD | Samuel Dale 1817 |
| SD | Stephen Danks 1863 |
| SEB | Stanhope English Blunt Capt., USA Colt Revolvers 1889-1890 |
| SEB | S.E. Bugbee 1901-1910 |
| SGG | Samuel G. Green Lt.Col., USA Colt 1939 |
| SH | Samuel Hawkins 1862 |
| SHB | S.H. Broughton 1899-1910 |
| SHM | Stepnen H. Macgregor Col., USA M1 .30 Rifles and Carbines 1945-1947 |
| SHW | Sheffield H. Wright Amoskeag M1861 .58 Muskest 1862-1864 |
| SJ | Seth James Pomeroy Muskets 1818-1824 |
| SK | Samuel Keeler Colt First Model Dragoon 1848 |
| SK | S. Knows Ashton Pistols and Colt Dragoons L846-1852 |
| SL | Samuel Leonard Colt and Savage Revolvers 1862-1875 |
| SLG | Sidney L. Gibson Lt., USA Hi-Standard .22 Pistols 1941 |
| SLT | S.L. Tuttle 1894 |
| SLW | Samuel L. Worsley 1862-1863 |
| SM | Samuel Marcy Lt., USN 1852-1862 |
| SM | Stillman Moore Aston Pistogs 1846-1852 |
| SP | S. Priestley 1906 |
| SPB | Samuel P. Baird Lt., USN Starr and Whitney Revolvers 1861-1873 |
| SPG | Samuel P. Green Col. USA M1903, M1 .30 Rifles 1938 |
| SPL | Unknown M1903 Riples 1917-1920 |
| SPS | Sidney P. Spaulding Lt.Col., USA Colt 1940 |
| STB | Samuel T. Bugbee Starr Revolvers 1861 |
| SWP | S.W. Porter 1859-1863 |
| TA | Thomas Annely Musket and Pistol Barrels 1796 |
| TAB | Theodore A. Belknap 1862 |
| TBH | Thomas B. Hawks 1862-1863 |
| TCC | Unknown Leather Goods. Rock Island |
| TD | Thomas Dale Lock Maker 1796 |
| TFJ | Thomas F. Jewell Cdr., USN Navy M1882 and M1894 Signal Pistols |
| THR | T.H. Rocers 1896 and 1901-1904 |
| THS | Thomas Holdup Stevens Lt., USN Starr Cutlass 1816 |
| TJF | T.J. Fitzpatrick 1898 |
| TJL | T.J. Lovett 1904-1906 |
| TJR | Unknown 24 Pounder Howitzer M1839 |
| TJS | T.J. Smith Col., USA Colt 1935-1937 |
| TJS | T.J. Stevenson Springfield Rifles 1870-1879 |
| TKL | Unknown Joslyn Carbines 1863 |
| TLC | T.L. Childs Colt M1911 .45 Pistol 1917 |
| TMH | Thomas M. Hervey Maj., USA Colt 1938 |
| TMJ | Thomas M. Jervy Maj., USA Colt 1937-1938 |
| TP | Thomas Palmer Henry, Fry, Guest, Brong, Cook and Shuler Pistols 1808 |
| TPM | T.P. Maroney 1898 |
| TS | Thomas Sangster Capt., USA 1812 |
| TS | Townsend Stith Capt., USA 1810 |
| TS | Thomas Stockton Capt., USA 1812-1825 |
| TS | Thomas Stuart Capt., USA 1813 |
| TTH | Thomas T. Holme Lt., USA Colt 1941-1942 |
| TTSL | Theodore T.S. Laidley Maj., 1864-1866 |
| TV | Thomas Valentine 1863 |
| TW | Thomas Warner R. Johnson Pistols, Watens .69 Flintlock Muskets 1833-1837 |
| TWB | T.W. Booth Sharps Rifles and Carbines 1861-1865 |
| TWC | Thomas W. Cafer Confederate Copy Of Whitney Revolvers 1863 |
| TWH | Thomas W. Hafer Colt 1941 |
| TWH | T.W. Holmes Capt., USA Colt 1926 |
| TWR | Thomas W. Russell 1862 |
| UN | Urban Niblo Lt., USA Colt .38 Revolvers 1928 |
| UPS | Urial P. Strong 1862 |
| VAL | Viotto A. Luukkonen Colt 1940 |
| VCW | Unknown M1806 Harpers Ferry Pistols |
| VLB | V.L. Bennett 1875 |
| W | Charles Woodman Smith & Wesson Model 3 Russian 2Nd and 3Rd Model .44 Revolver, Smith & Wesson 2Nd Model Schofield .44 Revolver 1876-1877 |
| W | E.C. Wheeler Colt M1873 S.A. .45 Revolvers 1878 |
| WAB | W.A. Benjamin 1898 |
| WAB | W.A. Bennet 1898 |
| WAB | William A. Borden Lt.Col., USA Colt 1936-1939 |
| WAT | William Anderson Thornton Capt., USA Nippes M1840 Musket, Ames, Aston R. Johnson & Waters Pistols and Massachusetts Arms Adams, Remington Beals, Savage, Colt, Paterson, Walker and Dragoon Revolvers, Joslyn Carbines, Colt Revolving Rifles 1840-1861 |
| WAW | W.A. Walker Jr 1905-1906 |
| WB | William Blanchard 1831 |
| WB | William Bradbury 1860 |
| WB | Waldemar Broberg Col., USA Colt, Smith & Wesson Victory Revolvers, Colt M1911A1 .45 Auto Pistols 1941 |
| WB | William Brown 1862 |
| WBS | William B. Shubrick Capt., USN Naval Cannon 1806 |
| WBW | William B. Whittelsky Lt., USN Winchester-Lee 6mm Rifle |
| WC | William Cadwell Remington Beals .44 Percussion Revolvers 1860-1861 |
| WC | William Chapman Purchased Arms and Parts 1860-1864 |
| WCD | Unknown Leather Goods. Rock Island |
| WCF | W.C. Fielding 1898-1907 |
| WCO | Warren C. Odell Colt 1939 |
| WCW | Unknown Sharps and Hankins Carbines 1863 |
| WD | Willlam Dickinson 1849-1850 |
| WDB | Unknown Leather Goods, Rock Island |
| WDC | Unknown Leather Goods 1918 |
| WDE | W.D. Earl Parts Of Arms 1863 |
| WDN | William D. Nicholsun USN Remington M1866 Pistols 1866 |
| WDW | W.D. Whiting Cdr., USN Remington M1867 Pistol Barrels |
| WE | W. Easley 1902 |
| WEB | W.E. Benjamin 1898 |
| WEB | W.E. Boynton 1902-1910 |
| WEH | W.E. Hosmer Springfield M1903 .30 Rifles and Colt M1911 .45 Pistols 1905-1915 |
| WEH | William E. House Capt., USA Colt 1938 |
| WES | W.E. Strong Colt M1911 ,45 Pistols, M1903 .30 Rifles 1909-1917 |
| WF | William Foster Parts Of Arms 1863 |
| WFB | W.F. Bradbury 1898-1902 |
| WFF | W.F. Fennrery 1904-1906 |
| WFG | William F. Gallagher Capt., USA 1940 |
| WFW | W.F. Wilbur 1905-1906 |
| WG | W. Ganeard Colt .38 Revolvers 1901-1902 |
| WGC | W.G. Chamberlain 1859-1875 |
| WGP | Walter G. Penfield Maj., USA Colt M1911 .45 Pistols 1909-1914 |
| WH | Wescon Hudgins Capt., Csa Rigdon, Ansley & C0. .36 Revolvers 1863 |
| WHB | William H. Barber 1862 |
| WHB | W.H. Brundrett 1898-1900 |
| WHB | William H. Bulkey 1862 |
| WHC | William H. Carver 1862-1863 |
| WHC | William H. Chandler 1862-1863 |
| WHC | W.H. Clayton Colt 1898-1901 |
| WHG | W.H. Greene 1901-1902 |
| WHH | W.H. Hayden 1901-1906 |
| WHM | W.H.. Morely 189D-1902 |
| WHR | William H. Roberts Colt M1860 .44 Revolvers 1863 |
| WHR | William H. Russell 1862-1863 |
| WHS | W.H. Soderholm Maj., USA Colt 1936 |
| WJB | William J. Bowers Colt 1938 |
| WJC | W.J, Clark 1898 |
| WJH | W.J. Hines 1904-1910 |
| WJJ | Unknown M1865 Joslyn Conversion Rifle |
| WJO | W.J. Ober 1904-1906 |
| WJS | Unknown M1903 .30 Rifles 1917-1920 |
| WK | William Kennedy Holsters Rock Island 1902 |
| WK | Unknown 1900 Luger Holster, Rock Island |
| WL | Unknown Re-Furbished Rifles, Rock Island 1930'S |
| WLB | William L. Bates Remington Navy Revolvers 1870-1879 |
| WLB | William L. Bell Lt., USA Colt 1937 |
| WLB | William L. Borden 1844-1854 |
| WLC | W.L. Crowl 1898-1902 |
| WLF | Unknown Leather Goods, Rock Island |
| WM | William Maynauier Lt,Col., USA 1838-1863 |
| WM | Unknown Ml9Osa1 Rifles 1933 |
| WMF | William M. Folger Lt.Cdr., USN Hotchkiss, Remington-Lee .45-70 Rifles 1873-1875 |
| WML | W.M. Lyndon Colt 1898 |
| WMM | W.M. Mills 1894 |
| WN | Walter North Aston Pistols and Colt M1851 .36 Revolvers 1831-1852 |
| WN | Walter North 1859-1863 |
| WNJ | W.N. Jeffers Navy M1861 Signal Pistol |
| WP | William Page 1863 |
| WP | William Prince Capt., USA Whitney Muskets 1875-1877 |
| WPP | W.P. Pulcifer 1896 |
| WPT | Wllliam P, Taylor |
| WR | William Richardson 1808 |
| WR | William Russell 1808 |
| WRS | W.R. Snipley 1898 |
| WS | William Smith Evans Barrels and Bayonets I828-1841 |
| WS | W. Syrett 1904-1906 |
| WSW | William S. Wood 1862-1863 |
| WT | William Taggart Civilian, USN Ames Navy Flask 1843-1849 |
| WT | William Turnbull 1843-1851 |
| WTG | Walter T. Groton Maj., USA Colt M1911 and M1911A1 .45 Pistols 1924-1926, 1928 |
| WW | William Walter Remington-Elliot M1861 .44 and Pettengill .44 Revolvers 1862-1864 |
| WW | Wallace Whitney Amoskeag M1861 .58 Musket 1863-1865 |
| WWA | Unknown M1903A1 Rifles 1933 |
| WWB | W.W. Bartlett 1899-1904 |
| WWK | W.W. Kimball Lt., USN Remington-Lee .45-70 Rifles and Colt .38 Revolvers, Pratt-Whitney 37mm Revolving Cannon 1879-1889 |
| WWS | W.W. Street 1874-1875 |
| Y | Jonathan Young, USN Whitney Revolvers 1844-1854 |
| ZB | Zadock Butt 1862 |