| Abbey, D. P. | D.U.S. Marshal | ||
| Abbott, I. J. | Posseman | 1895- | |
| Abernathy, John R. | U. S. Marshall | Guthrie | 1906-1907-1908 |
| Abernathy, Van F. | D.U.S. Marshal | 1907- | |
| Abogast, John | Posseman | 1894- | |
| Abran, J. D. | D.U.S. Marshal | 1893- | |
| Adains, D. | D.U.S. Marshal | 1894 | |
| Adair, Foreman | D.U.S. Marshal | 1891-1892-1896-1899 | |
| Adair, William | D.U.S. Marshal | 1891-1894 | |
| Adams, Airiel | Posseman | 1895- | |
| Adams, C. B. | Deputy US M | 09/02/1878 | |
| Adams, Edgar S. | D.U.S. Marshal | 1895- | |
| Adams, H. A. | D.U.S. Marshal | 1894- | |
| Adams, J. H. | U. S. Marshall | killed in line of duty 09/02/1878 | |
| Adams, J. H. | Posseman | 1895- | |
| Adams, John C. | D.U.S. Marshal | 1895- | |
| Adams, John L. | D.U.S. Marshal | ||
| Adams, R. C. | D.U.S. Marshal | 1890- | |
| Adams, William | D.U.S. Marshal | Muskogee | 1895-1890-1897-1907 |
| Admas, David | D.U.S. Marshal | Ardmore | 1902- |
| Admas, Oscar | D.U.S. Marshal | ||
| Adariet, D. | D.U.S. Marshal | 1895 | |
| Akin, Andrew Jackson | D.U.S. Marshal | ||
| Alberty, E. B. | D.U.S. Marshal | 1895-1896 | |
| Alberty E. C. | D.U.S. Marshal | 1894-1895 | |
| Alberty George | D.U.S. Marshal | ||
| Alberty, Jesse | D.U.S. Marshal | 1895- | |
| Alberty P. K. | D.U.S. Marshal | 1894- | |
| Albright, John H. | D.U.S. Marshal | 1919 | |
| Alexander, Thomas | D.U.S. Marshal | killed in line of duty 04/20/1874 | |
| Alexander, Elmer | D.U.S. Marshal | 1891-1892-1893-- | |
| Alexander, Robert | D.U.S. Marshal | 04/20/1874 | |
| Alexander, S. B. | D.U.S. Marshal | ||
| Allen George | D.U.S. Marshal | ||
| Allen, A. B. | D.U.S. Marshal | 1893- | |
| Allen, Albert | Posseman | 1895- | |
| Allen, Augustus A. | D.U.S. Marshal | ||
| Allen, Charles B. P. | D.U.S. Marshal | ||
| Allen, D. | D.U.S. Marshal | ||
| Allen, Jesse | D.U.S. Marshal | ||
| allen, John H. | D.U.S. Marshal | 1892-1893 | |
| Allen, John R. | D.U.S. Marshal | 1892- | |
| Allen, T. R. | D.U.S. Marshal | 1885- | |
| Allen, V. V. | D.U.S. Marshal | ||
| Allen, Zack | D.U.S. Marshal | 1888- | |
| Allenbough, E. E. | Posseman | 1895- | |
| Allendon, Samuel | D.U.S. Marshal | ||
| Allison, William M. | D.U.S. Marshal | Snyder | 1907- |
| allmitt, W. D. | D.U.S. Marshal | 1875- | |
| Alnutt, W. D. | D.U.S. Marshal | ||
| Anders, J. L. | U. S. Marshal | killed in the line of duty 9/29/1921 | |
| Anderson, Andel | D.U.S. Marshal | 1874- | |
| Anderson, C. M. | D.U.S. Marshal | 1918- | |
| Anderson, Claude | D.U.S. Marshal | ||
| Anderson, Frank | D.U.S. Marshal | ||
| Anderson, J. | Posseman | 1895- | |
| Anderson, James W. | D.U.S. Marshal | 1894 | |
| Anderson, Silas | D.U.S. Marshal | 1885-1892 | |
| Anderson, William | D.U.S. Marshal | 1894- | |
| Anderson, William H. | U. S. Marshal | Killed in the line of duty 11/08/1878 | |
| Anderson, William J. | D.U.S. Marshal | 1896- | |
| Andrew, Irland | D.U.S. Marshal | 1892- | |
| Andrews, Elias | D.U.S. Marshal | 1885-1894 | |
| Andrews, Silas | D.U.S. Marshal | 1885-1890-1891-1892-1893-1894-1895-1898 | |
| Andrews, T. M. | D.U.S. Marshal | ||
| Angell, H. W. | D.U.S. Marshal | ||
| Anible, John | D.U.S. Marshal | ||
| Ansley, W. W. | D.U.S. Marshal | ||
| Ansley, William T. | D.U.S. Marshal | 1894- | |
| Apperson, W. E. | Posseman | 1895- | |
| archer, Arthur O. | D.U.S. Marshal |