| Commissioned Officers | |
|---|---|
| Captain | Milo L. Starks |
| First Lieutenant | Joseph M. Leeper |
| Second Lieutenant | J. Durward Decker |
| Non-Commissioned Officers | |
| First Sergeant | Henry Allen |
| Sergeant | Charles L. Taylor |
| Sergeant | John H. Wright |
| Sergeant | Charles A. Perry |
| Sergeant | John Dean |
| Corporal | Oscar P. Colby |
| Corporal | John B. Snyder |
| Corporal | Marryett H. Hunt |
| Corporal | Theodore B. Whipple |
| Corporal | Spencer Miller |
| Corporal | George W . Whitney |
| Corporal | Barton T. Perigo |
| Corporal | Judson Fielding |
| Musician | George E. Moore |
| Musician | Byron S. Blake |
| Wagoner | John B. Blodgett |
| Privates | |
| Adkins, Robert | Lowery, James S. |
| Allen, David W. | Lowery, Robert G. |
| Ashley, Lucius | Luce, Oscar C. |
| Bante, Williams C. | Lynd, John A. |
| Barnes, Isaac Jr. | Manslee, John |
| Bellinger, Charles | Markey, Thomas |
| Blake, Isaac | McCulloch, Albert |
| Bowles, James | Minot, James |
| Brownyar, Joseph | Mockford, William S. |
| Burch, Thaddeus K. | Moore, Adam Jr. |
| Clark, Francis T. | Moore, John M. |
| Clark, Thomas, M. | Moorehouse, Alonzo |
| Colley, Franklin | Mosely, Auranah |
| Cooper, John L. | Mulvaney, James |
| Courtney, Lewis B. | Percell, Edward |
| Coward, Richard | Perry, Joseph A. * |
| Edward, Charles D. | Phillips, Albert |
| Estes, George W. | Redman, Charles A. |
| Farrell, Timothy | Reynolds, Francis |
| Fishbaugh, Charles | Richards, Donain |
| Flynn, Patrick | Robinson, John |
| Fordham, Milton C. | Root, Charles W. |
| Fosmire, Jacob | Schouton, Henry W. |
| Genett, Henry A. | Scott, Graham R. |
| Green, Darwin | Secor, Orland |
| Green, Henry H. | Seeley, Anson |
| Haight, Martin W. | Shaw, Alexander Jr. |
| Hamil, Aaron H. | Shaw, William H. |
| Healey, John | Shears, William H. |
| Herrington, John | Sparlin, Alson C. |
| Hewett, Thomas | Starin, Charles W. |
| Hoy, James M. | Steele, George V. |
| Hoy, Myron | Steves, John W. |
| Hoyt, George T. | Stickle, Charles H. |
| Hunt, Silas W. | Stotle, Kinsey |
| Hurlburt, Nathaniel E. | Taylor, Huburt C. |
| Ireland, George | Thompson, William H. |
| Kincaid, Henry E. | Ward, George H. |
| LaDue, James | Warner, Edgar J. |
| Lee, John | Wilson, John |
| Lewis, Alfred S. | Wright, George A. |
| * Absent at time of muster-in, reported deserted. | |
Note: The rolls of Company A were completely filled with men from the village of Brockport, New York. No other company in the 140th NY was raised entirely in one village or town.