War Records: O'Brian
Found 756 Civil War soldier records for surname "O'Brian" (Union: 620, Confederacy: 136).
756 Results
| Name | State | Unit | Function |
|---|---|---|---|
| O'Brian, Michael | Illinois | 58th Regiment, Illinois Infantry | Infantry |
| O'Brian, Michael | Ohio | 4th Regiment, Ohio Cavalry | Cavalry |
| O'Brian, Michael | Ohio | 19th Regiment, Ohio Infantry | Infantry |
| O'Brian, Michael | Ohio | 67th Regiment, Ohio Infantry | Infantry |
| O'Brian, Michael | Ohio | 198th Regiment, Ohio Infantry | Infantry |
| O'Brian, Michael | Michigan | 1st Regiment, Engineers and Mechanics, Michigan | Engineers |
| O'Brian, Michael | Michigan | 4th Regiment, Michigan Infantry (1st organization) | Infantry |
| O'Brian, Michael | Pennsylvania | 13th Regiment, Pennsylvania Infantry (3 months, 1861) | Infantry |
| O'Brian, Michael | New Jersey | 11th Regiment, New Jersey Infantry | Infantry |
| O'Brian, Michael | Washington Territory | 1st Regiment, Washington Infantry | Infantry |
| O'Brian, Michael | New Jersey | 2nd Regiment, New Jersey Cavalry | Cavalry |
| O'Brian, Michael | New Jersey | 2nd Regiment, New Jersey Infantry | Infantry |
| O'Brian, Michael | New Jersey | 2nd Regiment, New Jersey Veteran Infantry | Infantry |
| O'Brian, Michael | District Of Columbia | 2nd Regiment, District of Columbia Infantry | Infantry |
| O'Brian, Michael | New Jersey | 4th Regiment, New Jersey Infantry | Infantry |
| O'Brian, Michael | Massachusetts | 6th Regiment, Massachusetts Infantry (9 months, 1862-63) | Infantry |
| O'Brian, Michael E. | Wisconsin | 51st Regiment, Wisconsin Infantry | Infantry |
| O'Brian, Michael P. | Veteran Reserve | 22nd Regiment, Veteran Reserve Corps | |
| O'Brian, Michael S. | New York | 34th Regiment, New York Infantry | Infantry |
| O'Brian, Michal | Other Volunteers | Marine Regiment, US Volunteers | |
| O'Brian, Mick | Minnesota | 6th Regiment, Minnesota Infantry | Infantry |
| O'Brian, Nathan | United States Colored Troops | 138th Regiment, United States Colored Infantry | Infantry |
| O'Brian, Patrick | Missouri | 11th Regiment, Missouri Infantry | Infantry |
| O'Brian, Patrick | Illinois | 93rd Regiment, Illinois Infantry | Infantry |
| O'Brian, Patrick | Ohio | 10th Regiment, Ohio Infantry | Infantry |
| O'Brian, Patrick | Ohio | 173rd Regiment, Ohio Infantry | Infantry |
| O'Brian, Patrick | Kansas | 1st Regiment, Kansas Infantry | Infantry |
| O'Brian, Patrick | Missouri | 39th Regiment, Missouri Infantry | Infantry |
| O'Brian, Patrick | Indiana | 35th Regiment, Indiana Infantry | Infantry |
| O'Brian, Patrick | Indiana | 42nd Regiment, Indiana Infantry | Infantry |
| O'Brian, Patrick | Pennsylvania | 81st Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, Patrick | Pennsylvania | 115th Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, Patrick | Pennsylvania | 215th Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, Patrick | Union Regular Army | 5th Regiment, US Artillery (Regular Army) | Artillery |
| O'Brian, Patrick | New York | 120th Regiment, New York Infantry | Infantry |
| O'Brian, Patrick | Kentucky | 15th Regiment, Kentucky Infantry | Infantry |
| O'Brian, Patrick | Illinois | 46th Regiment, Illinois Infantry | Infantry |
| O'Brian, Patrick | Missouri | 1st Regiment, Missouri Light Artillery | Artillery |
| O'Brian, Patrick | Tennessee | 13th Regiment, Tennessee Cavalry | Cavalry |
| O'Brian, Patrick | Veteran Reserve | 2nd Battalion, Veteran Reserve Corps | |
| O'Brian, Patrick | Vermont | 2nd Regiment, Vermont Infantry | Infantry |
| O'Brian, Patrick | Maryland | 3rd Regiment, Maryland Infantry, Potomac Home Brigade | Infantry |
| O'Brian, Patrick | Wisconsin | 10th Regiment, Wisconsin Infantry | Infantry |
| O'Brian, Patrick | Wisconsin | 13th Regiment, Wisconsin Infantry | Infantry |
| O'Brian, Patrick | Wisconsin | 30th Regiment, Wisconsin Infantry | Infantry |
| O'Brian, Patrick | Wisconsin | 48th Regiment, Wisconsin Infantry | Infantry |
| O'Brian, Patrick | Delaware | 1st Regiment, Delaware Infantry | Infantry |
| O'Brian, Patrick | Delaware | 1st Regiment, Delaware Infantry (3 months, 1861) | Infantry |
| O'Brian, Patrick | Indiana | 66th Regiment, Indiana Infantry | Infantry |
| O'Brian, Patrick | Other Volunteers | Marine Regiment, US Volunteers |
Search External Archives
Search for "O'Brian" 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'Brian" 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.