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, Patrick | Illinois | 52nd Regiment, Illinois Infantry | Infantry |
| O'Brien, Patrick | Illinois | 57th Regiment, Illinois Infantry | Infantry |
| O'Brien, Patrick | Illinois | 148th Regiment, Illinois Infantry | Infantry |
| O'Brien, Patrick | Ohio | 10th Regiment, Ohio Infantry | Infantry |
| O'Brien, Patrick | Ohio | 11th Regiment, Ohio Infantry | Infantry |
| O'Brien, Patrick | Ohio | 47th Regiment, Ohio Infantry | Infantry |
| O'Brien, Patrick | Ohio | 56th Regiment, Ohio Infantry | Infantry |
| O'Brien, Patrick | Ohio | 82nd Regiment, Ohio Infantry | Infantry |
| O'Brien, Patrick | Ohio | 95th Regiment, Ohio Infantry | Infantry |
| O'Brien, Patrick | Ohio | 98th Regiment, Ohio Infantry | Infantry |
| O'Brien, Patrick | Ohio | 183rd Regiment, Ohio Infantry | Infantry |
| O'Brien, Patrick | Kansas | 1st Regiment, Kansas Infantry | Infantry |
| O'Brien, Patrick | Kansas | 19th Regiment, Kansas Cavalry (6 months) | Cavalry |
| O'Brien, Patrick | New Hampshire | 10th Regiment, New Hampshire Infantry | Infantry |
| O'Brien, Patrick | Iowa | 45th Regiment, Iowa Infantry (100 days, 1864) | Infantry |
| O'Brien, Patrick | Connecticut | 16th Regiment, Connecticut Infantry | Infantry |
| O'Brien, Patrick E. | Veteran Reserve | 2nd Battalion, Veteran Reserve Corps | |
| O'Brien, Patrick G. | Maine | 7th Regiment, Maine Infantry | Infantry |
| O'Brien, Patrick G. | Connecticut | 22nd Regiment, Connecticut Infantry | Infantry |
| O'Brien, Patsy | Indiana | 6th Regiment, Indiana Infantry | Infantry |
| O'Brien, Peter | Pennsylvania | 82nd Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, Peter | Connecticut | 5th Regiment, Connecticut Infantry | Infantry |
| O'Brien, Peter | Connecticut | 11th Regiment, Connecticut Infantry | Infantry |
| O'Brien, Peter | Connecticut | 28th Regiment, Connecticut Infantry | Infantry |
| O'Brien, Peter | Veteran Reserve | 2nd Battalion, Veteran Reserve Corps | |
| O'Brien, Peter | Vermont | 17th Regiment, Vermont Infantry | Infantry |
| O'Brien, Peter | New York | 7th Regiment, New York Heavy Artillery | Artillery |
| O'Brien, Peter | Illinois | 8th Regiment, Illinois Infantry | Infantry |
| O'Brien, Peter C. | New York | 51st Regiment, New York Infantry | Infantry |
| O'Brien, Philip | New York | 81st Regiment, New York Infantry | Infantry |
| O'Brien, Philip | Michigan | 1st Regiment, Michigan Light Artillery | Artillery |
| O'Brien, Philip | Ohio | 76th Regiment, Ohio Infantry | Infantry |
| O'Brien, Philip P. | Kansas | 18th Battalion, Kansas Cavalry | Cavalry |
| O'Brien, Phillip | Michigan | 3rd Regiment, Michigan Cavalry | Cavalry |
| O'Brien, Phillip | Other Volunteers | 4th Regiment, US Veteran Volunteer Infantry | Infantry |
| O'Brien, Richard | Connecticut | 17th Regiment, Connecticut Infantry | Infantry |
| O'Brien, Richard | Wisconsin | 5th Regiment, Wisconsin Infantry | Infantry |
| O'Brien, Richard | Union Regular Army | US Army (Regular Army) | |
| O'Brien, Richard | Massachusetts | 28th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Richard | Missouri | 6th Regiment, Missouri Infantry | Infantry |
| O'Brien, Richard | Connecticut | 5th Regiment, Connecticut Infantry | Infantry |
| O'Brien, Richard | Wisconsin | 8th Independent Battery, Wisconsin Light Artillery | Artillery |
| O'Brien, Richard | Kentucky | 2nd Regiment, Kentucky Cavalry | Cavalry |
| O'Brien, Richard | Massachusetts | 9th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Richard | Massachusetts | 24th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Richard | Ohio | 7th Regiment, Ohio Infantry | Infantry |
| O'Brien, Richard | Ohio | 129th Regiment, Ohio Infantry | Infantry |
| O'Brien, Richard | Ohio | 184th Regiment, Ohio Infantry | Infantry |
| O'Brien, Richard | Missouri | 1st Regiment, Missouri Infantry (3 months 1861) | Infantry |
| O'Brien, Richard | Missouri | 5th Regiment, Missouri Infantry (3 months, 1861) | 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 →
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Fold3 - Military Records →
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Ancestry - Military Records →
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