War Records: O'Brien
Found 1,738 Civil War soldier records for surname "O'Brien" (Union: 1389, Confederacy: 349).
1,738 Results
| Name | State | Unit | Function |
|---|---|---|---|
| O'Brien, Eustace | Virginia | 32nd Battalion, Virginia Cavalry | Cavalry |
| O'Brien, Eustace | Virginia | 59th Regiment, Virginia Infantry | Infantry |
| O'Brien, F. S. | Alabama | 17th Regiment, Alabama Infantry | Infantry |
| O'Brien, Francis P. | Alabama | Lee's Battery, Alabama Light Artillery | Artillery |
| O'Brien, Frank | Texas | 13th Regiment, Texas Volunteers | |
| O'Brien, Frank | Tennessee | 2nd Regiment, Tennessee Infantry (Walker's) | Infantry |
| O'Brien, Frank B. | Alabama | Lee's Battery, Alabama Light Artillery | Artillery |
| O'Brien, G.W. | Georgia | 1st City Battalion, Georgia Infantry (Columbus) | Infantry |
| O'Brien, G.W. | Louisiana | Crescent Regiment, Louisiana Infantry | Infantry |
| O'Brien, George | Tennessee | 4th Regiment, Tennessee Infantry (Neely's) | Infantry |
| O'Brien, George | Louisiana | 22nd Regiment, Louisiana Infantry | Infantry |
| O'Brien, George | Alabama | 1st Regiment, Alabama Infantry | Infantry |
| O'Brien, George Alfred | Texas | McCord's Frontier Regiment, Texas Cavalry | Cavalry |
| O'Brien, Giraldus M. | Georgia | Floyd Legion, Georgia (State Guards) | |
| O'Brien, Henry | Texas | 4th Regiment, Texas Infantry | Infantry |
| O'Brien, Henry | Louisiana | 28th Regiment, Louisiana Infantry (Thomas') | Infantry |
| O'Brien, Henry C. | Kentucky | 13th Regiment, Kentucky Cavalry | Cavalry |
| O'Brien, Henry S. | South Carolina | 7th Regiment, South Carolina Cavalry | Cavalry |
| O'Brien, Hugh | Georgia | 1st Regiment, Georgia Regulars | |
| O'Brien, Hugh | Georgia | Maxwell's Regular Light Battery, Georgia Artillery | Artillery |
| O'Brien, Hugh | Virginia | 47th Battalion, Virginia Cavalry | Cavalry |
| O'Brien, J. | Louisiana | 7th Regiment, Louisiana Infantry | Infantry |
| O'Brien, J. | Virginia | 54th Regiment, Virginia Militia | |
| O'Brien, J. | Louisiana | Chalmette Regiment, Louisiana Militia | |
| O'Brien, J. | Georgia | 8th Regiment, Georgia Infantry | Infantry |
| O'Brien, J. | Louisiana | 1st Regiment, Louisiana Infantry (Strawbridge's) | Infantry |
| O'Brien, J. | Louisiana | 21st Regiment, Louisiana Infantry (Kennedy's) | Infantry |
| O'Brien, J. | Georgia | 1st Battalion, Georgia Infantry (State Guards) | Infantry |
| O'Brien, J. E. | Kentucky | 12th Regiment, Kentucky Cavalry | Cavalry |
| O'Brien, J. G. | Texas | 1st Regiment, Texas Cavalry (Yager's) (1st Mounted Rifles) | Cavalry |
| O'Brien, J. Y. | Texas | 3rd Battalion, Texas Cavalry (3rd Battalion Mounted Rifles) | Cavalry |
| O'Brien, J.F. | Georgia | 1st Regiment, Georgia Infantry (Olmstead's) | Infantry |
| O'Brien, J.T. | Confederate States | General and Staff Officers, Non-Regimental Enlisted Men, CSA | |
| O'Brien, J.T. | Georgia | 18th Battalion, Georgia Infantry | Infantry |
| O'Brien, James | Louisiana | Crescent Regiment, Louisiana Infantry | Infantry |
| O'Brien, James | Confederate States | General and Staff Officers, Non-Regimental Enlisted Men, CSA | |
| O'Brien, James | Texas | Texas Conscripts | |
| O'Brien, James | Georgia | Phillips' Legion, Georgia | |
| O'Brien, James | Maryland | 3rd Battery, Maryland Artillery | Artillery |
| O'Brien, James | Louisiana | Irish Regiment, Louisiana Militia | |
| O'Brien, James | Confederate States | Exchanged Battalion, CSA | |
| O'Brien, James | Tennessee | 1st Regiment, Tennessee Infantry (Turney's) | Infantry |
| O'Brien, James | Tennessee | 2nd Regiment, Tennessee Infantry (Walker's) | Infantry |
| O'Brien, James | Georgia | 1st Regiment, Georgia Infantry (Olmstead's) | Infantry |
| O'Brien, James | Arkansas | Owen's Battery, Arkansas Light Artillery | Artillery |
| O'Brien, James | Mississippi | 21st Regiment, Mississippi Infantry | Infantry |
| O'Brien, James | Mississippi | 44th Regiment, Mississippi Infantry | Infantry |
| O'Brien, James | Georgia | 47th Regiment, Georgia Infantry | Infantry |
| O'Brien, James | Virginia | Mallory's Company, Virginia Local Defense (Provost Guard) | |
| O'Brien, James | Maryland | 2nd Battalion, Maryland Infantry | Infantry |
Search External Archives
Search for "O'Brien" on these official military record databases:
NPS Civil War Soldiers & Sailors →
The National Park Service database of Civil War soldiers and sailors. Search for "O'Brien" on the NPS site.
National Archives - Revolutionary War →
Revolutionary War military records from the National Archives, including pension and bounty land warrant files.
FamilySearch - Civil War Records →
Free access to Civil War records including service records, pension files, and draft registration cards.
Fold3 - Military Records →
Extensive collection of military records including Civil War, Revolutionary War, and other conflicts.