3rd Pennsylvania Cavalry
Company I

|
Name |
Rank |
Date of Muster |
Remarks |
| William K. Grant | Captain | August 17, 1861 | Resigned December 6, 1861 |
| James W. Walsh | Captain | January 1, 1862 | Promoted to Major, December 4, 1863 |
| Edward M. Heyl | Captain | August 16, 1861 | Promoted from 2d Lt. Company M, to 1st Lieut., May 1, 1863; to Captain, May 2, 1864; mustered out with Company, August 24, 1864 |
| P. A. Fitzgerald | 1st Lt. | August 17, 1861 | Resigned November 9, 1861 |
| Frank W. Hess | 1st Lt. | November 4, 1861 | Promoted to Captain, Company M, July 8, 1862 |
| Henry C. M’Cawley | 2d Lt. | August 17, 1861 | Resigned January 18, 1862 |
| Jos. D. Galloway | 2d Lt. | August 17, 1861 | Promoted from Sergeant to 2d Lt., July 1, 1862; to 1st Lt. Company M, November 17, 1862 |
| Joseph S. Stever | 1st Sergeant | August 17, 1861 | Discharged January 1, 1862 |
| Matthias Cooper | Sergeant | August 16, 1861 | Promoted to Corporal, February, 1862; to Sergeant, August, 1863; mustered out with Company, August 24, 1864 |
| William Hadfield | Sergeant | August 17, 1861 | Promoted from Corporal, April, 1863; mustered out with Company, August 24, 1864 |
| Georgg Phillips | Sergeant | August 17, 1861 | Promoted to Corporal, 1863; to Sergeant, July, 1863; mustered out with Company, August 24, 1864 |
| Edward Crowther | Sergeant | August 17, 1861 | Promoted to Corporal, 1863; to Sergeant, July, 1863; mustered out with Company, Augnst 24, 1864 |
| Chas. C. Slaugter | Sergeant | August 17, 1861 | Discharged on Surgeon’s Certificate, March 9, 1862 |
| George M’Keag | Sergeant | January 1, 1864 | Transferred to battalion, July 27, 1864; to 6th Regiment P. V., June 6, 1865; Vet |
| David S. Bishop | Corporal | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| William Trefeard | Corporal | August 17, 1861 | Discharged on Surgeon’s Certificate, February 12, 1862 |
| Alex’r Cameron | Corporal | January 1, 1864 | Transferred to battalion, July 27, 1864; to 65th Regiment P. V., June 6. 1865; Vet |
| John Cody | Bugler | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| John Oaks…. | Saddler | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| Ardes, James | Private | August 17, 1861 | Wounded in action, October 15, 1863; died, date unknown |
| Armstrong, M. | Private | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| Brown, Joseph | Private | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| Band, William | Private | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| Byram, John | Private | August 16, 1861 | Mustered out with Company, August 24, 1864 |
| Bailey, Edward | Private | May 10, 1864 | Promoted to Corporal batt,, December 1, 1864; to Quarter Master Sergeant Company M, April 26, 1865; transferred to battalion, July 27, 1864; to 65th Regiment P. V., June 6, 1865 |
| Brier, John | Private | August 17, 1861 | Died at Baltimore, Md., December 29, 1862 |
| Brown, William | Private | August 17, 1861 | Deserted July 3, 1863 |
| Carroll, James W. | Private | August 16, 1861 | Absent, sick, at muster out |
| Campbell, Wm. | Private | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| Cahill, John | Private | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| Clegg, James | Private | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| Curran, Michael | Private | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| Carney, (Crany,) J. | Private | August 17, 1861 | Discharged on Surgeon’s Certificate, January 28, 1862 |
| Clark, Robert | Private | August 17, 1861 | Discharged on Surgeon’s Certificate, December 12, 1861 |
| Connelly, Burnet | Private | August 17, 1861 | Discharged on Surgeon’s Certificate, March 7, 1862 |
| Cook, Joseph | Private | August 17, 1861 | Discharged on Surgeon’s Certificate, May 30, 1862 |
| Campbell, Peter F. | Private | May 17, 1864 | Transferred to battalion, July 27, 1864; to 65th Regiment P. V., June 6, 1865 |
| Dalton, Joseph | Private | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| Dixon. Joseph | Private | August 17, 1861 | Mustered out with Company; August 24, 1864 |
| Daly, John | Private | August 17, 1861 | Discharged on Surgeon’s Certificate, March 8, 1862 |
| Dorrington, Wm. | Private | August 17, 1861 | Discharged by sentence of General Court Martial, February 12, 1862 |
| Doris, Denny | Private | March 31, 1864 | Promoted to Farrier, Company M, battalion; transferred to battalion, July 27, 1864; to 65th Regiment P. V., June 6, 1865 |
| Devereaux, James | Private | May 7, 1864 | Transferred to battalion, July 27, 1864; died November 15, 1864; buried in Nat. Cem., Arlington, Va. |
| Daly, Thomas | Private | May 28, 1864 | Not on muster-out roll |
| Engenchyiller, C. | Private | May 16, 1864 | Transferred to battalion, July 27, 1864; to 65th Regiment P. V., June 6, 1865 |
| Fuller, Henry C. | Private | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| Field, William | Private | August 17, 1861 | Absent, sick, at muster out |
| France, Matthias | Private | August 17, 1861 | Discharged on Surgeon’s Certificate, April 3, 1863 |
| Furlow, Robert | Private | August 17, 1861 | Discharged on Surgeon’s Certificate, May 8, 1862 |
| Frost, William | Private | August 17, 1861 | Captured December 12, 1863; mustered out, January 23, 1865; expiration of term |
| Fulmer, William | Private | August 17, 1861 | Deserted December 4, 1863 |
| Forester, Richard | Private | October 24, 1864 | Discharged by General Order, August 16, 1865 |
| Glenn, George M. | Private | August 17, 1861 | Discharged on Surgeon’s Certificate, April 20, 1863 |
| Goss, Frederick | Private | August 16, 1861 | Discharged on Surgeon’s Certificate, May 8, 1862 |
| Gahagan, Barth’w. | Private | August 17, 1861 | Drowned at Alexandria, Va., March 21, 1862 |
| Humphreys, John | Private | August 17, 1861 | Mustered out With Company, August 24, 1864 |
| Hamilton, Eli.. | Private | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| Hummel, Henry | Private | August 17, 1861 | Deserted March 21, 1862 |
| Home, Joseph | Private | September 1, 1864 | Discharged by General Order, May 29, 1865 |
| Jeffries, Joseph C. | Private | August 17, 1861 | Discharged on Surgeon’s Certificate. January 28, 1864 |
| Keenan, Terrence | Private | August 17, 1861 | Discharged on Surgeon’s Certificate, March 23, 1863 |
| Kearney, Stephen | Private | May 26, 1864 | Transferred to battalion, July 27, 1864; to 65th Regiment P. V., June 6, 1865 |
| Kelley, Edward | Private | August 17, 1861 | Captured November 29. 1863; absent at muster out |
| Lee, James | Private | August 16, 1861 | Discharged on Surgeon’s Certificate, December 10, 1861 |
| Leonard, David | Private | August 17, 1861 | Drowned at Alexandria, Va., March 21, 1862 |
| Lynch, Thomas | Private | August 17, 1861 | Deserted January 22, 1862 |
| Martin, Wm. H. | Private | August 16, 1861 | Mustered out with Company, August 24, 1864 |
| Moore, John D. | Private | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| Moore, William | Private | March 23, 1864 | Transferred to battalion, July 27, 1864; to 65th Regiment P. V., June 6, 1865; Vet |
| Murphy, Archibald | Private | March 23, 1864 | Transferred to battalion, July 27, 1864; to 65th Regiment P. V., June 6, 1865; Vet |
| Myers, George | Private | August 17, 1861 | Captured November 29, 1863; absent at muster out |
| Martin, John K | Private | August 17, 1861 | Deserted June 1, 1862 |
| Martin, George | Private | August 17, 1861 | Deserted June 23, 1862 |
| Makison, William | Private | August 17, 1861 | Deserted, date unknown |
| M’Gahey, James | Private | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| M’Mullin, Edward | Private | August 17, 1861 | Discharged on Surgeon’s Certificate, March 9, 1862 |
| M’Clain, John | Private | August 17, 1861 | Discharged on Surgeon’s Certificate, March 9, 1862 |
| M’Ginness, W. | Private | January 1, 1864 | Promoted to Corporal battalion, September 18, 1864; to 1st Sergeant Company M, December 1, 1864; transferred to battalion, July 27, 1864; to 65th Regiment P. V., June 6, 1865; Vet |
| M’Ginniss, Andrew | Private | March 8, 1864 | Transferred to battalion, July 27, 1864; to 65th Regiment P. V., June 6, 1865; Vet |
| M’Avoy, James | Private | January 1, 1864 | Transferred to battalion, July 27, 1864; to 65th Regiment P. V., June 6, 18635-Vet |
| M’Hugh, Patrick | Private | May 7, 1864 | Transferred to battalion, July 27, 1864; to 65th Regiment P. V., June 6, 1865 |
| M’Kenna, Michael | Private | March 12, 1864 | Transferred to battalion, July 27, 1864; to 65th Regiment P. V., June 6, 1865 |
| M’Dermott, Edw’d. | Private | May 28, 1864 | Not on muster-out roll |
| Openshaw, George | Private | August 17, 1861 | Absent, sick, at muster out |
| O’Neall, Thomas | Private | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| Openshaw, Jas. (Jos.) | Private | Transferred to battalion, July 27, 1864 | |
| O’Neill, James | Private | August 16, 1861 | Deserted July 10, 1863 |
| Plunket, Thomas | Private | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| Quinn, William | Private | August 16, 1861 | Discharged on Surgeon’s Certificate, July 23, 1863 |
| Ramsey, John | Private | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| Roney, John | Private | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| Rowland, Joseph | Private | August 17, 1861 | Absent, sick, at muster out |
| Robson. William | Private | August 17, 1861 | Discharged on Surgeon’s Certificate, March 9, 1862 |
| Reily, Thomas | Private | August 17, 1861 | Transferred to 5th Regiment U. S. Cavalry, October 5, 1863 |
| Sigley, John | Private | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| Schofield, Thomas | Private | August 17, 1861 | Mustered out with Company, August 24, 1864 |
| Smith, John | Private | May 2, 1864 | Transferred to battalion, July 27, 1864; to 65th Regiment P. V., June 6, 1865 |
| Sterling, Charles | Private | May 23, 1864 | Transferred to battalion, July 27, 1864; to 65th Regiment P. V., June 6, 1865 |
| Skiffington, James | Private | August 16, 1861 | Promoted to Corporal battalion; to Sergeant, January 1, 1865; transferred to battalion, July 27, 1864; to 65th Regiment P. V., June 6, 1865; Vet |
| Smith, James | Private | August 17, 1861 | Died October 22, 1863; buried in Strangers’ Ground, Pittsburg, Pa. |
| Taylor, Henry | Private | August 17, 1861 | Absent, sick, at muster out |
| Thomas, George M. | Private | August 17, 1861 | Died January 28, 1864; buried in Military Asylum Cemetery, D. C. |
| Vanhorn, Joseph | Private | August 17, 1861 | Discharged May 5, 1862 |
| Varndell, Chas. M. | Private | February 29, 1864 | Transferred to battalion, July 27, 1864; died August 10, 1864; buried in Cypress Hill Cem., L. I. |
| Wilde, Isaac E. | Private | August 17, 1861 | Discharged October 9, 1862 |
| West, William T. | Private | August 17, 1861 | Captured November 27, 1863; mustered out, June 21, 1865; expiration of term |
| Wilson, William | Private | August 17, 1861 | Deserted January 10, 1862 |
| Winslow, George H. | Private | August 17, 1861 | Deserted January 22, 1862 |
Source: Bates, Samuel P. History of the Pennsylvania Volunteers, 1861-65, Harrisburg, 1868-1871.