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, Robert | Indiana | 22nd Regiment, Indiana Infantry | Infantry |
| O'Brian, Robert | Pennsylvania | 68th Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, Robert | Massachusetts | 37th Regiment, Massachusetts Infantry | Infantry |
| O'Brian, Robert E.L. | Missouri | 3rd Regiment, Missouri Cavalry | Cavalry |
| O'Brian, Samuel | Minnesota | 6th Regiment, Minnesota Infantry | Infantry |
| O'Brian, Samuel | Union Regular Army | 12th Regiment, US Infantry (Regular Army) | Infantry |
| O'Brian, Stephen | Indiana | 151st Regiment, Indiana Infantry | Infantry |
| O'Brian, Suey | Union Regular Army | 1st Regiment, US Artillery (Regular Army) | Artillery |
| O'Brian, Sylvester | Indiana | 52nd Regiment, Indiana Infantry | Infantry |
| O'Brian, Terrance | Connecticut | 10th Regiment, Connecticut Infantry | Infantry |
| O'Brian, Terrance | Wisconsin | 17th Regiment, Wisconsin Infantry | Infantry |
| O'Brian, Terrance | Pennsylvania | 97th Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, Terrance | Illinois | 14th Regiment, Illinois Cavalry | Cavalry |
| O'Brian, Terrence | Maryland | 2nd Regiment, Maryland Infantry | Infantry |
| O'Brian, Thomas | Pennsylvania | 16th Regiment, Pennsylvania Infantry (3 months, 1861) | Infantry |
| O'Brian, Thomas | Union Regular Army | US Army (Regular Army) | |
| O'Brian, Thomas | Illinois | 3rd Regiment, Illinois Cavalry | Cavalry |
| O'Brian, Thomas | Connecticut | 11th Regiment, Connecticut Infantry | Infantry |
| O'Brian, Thomas | Vermont | 9th Regiment, Vermont Infantry | Infantry |
| O'Brian, Thomas | Pennsylvania | 11th Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, Thomas | Pennsylvania | 97th Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, Thomas | Pennsylvania | 116th Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, Thomas | New York | 5th Regiment, New York Heavy Artillery | Artillery |
| O'Brian, Thomas | Massachusetts | 32nd Regiment, Massachusetts Infantry | Infantry |
| O'Brian, Thomas | Ohio | 3rd Regiment, Ohio Cavalry | Cavalry |
| O'Brian, Thomas | Ohio | 48th Regiment, Ohio Infantry | Infantry |
| O'Brian, Thomas | Iowa | 16th Regiment, Iowa Infantry | Infantry |
| O'Brian, Thomas | Connecticut | 6th Regiment, Connecticut Infantry | Infantry |
| O'Brian, Thomas | Michigan | 2nd Regiment, Michigan Cavalry | Cavalry |
| O'Brian, Thomas | Michigan | 8th Regiment, Michigan Cavalry | Cavalry |
| O'Brian, Thomas | Michigan | 14th Regiment, Michigan Infantry | Infantry |
| O'Brian, Thomas | Pennsylvania | Independent Battery E, Pennsylvania Light Artillery | Artillery |
| O'Brian, Thomas | Pennsylvania | 28th Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, Thomas | Pennsylvania | 61st Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, Thomas | Pennsylvania | 90th Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, Thomas | Pennsylvania | 199th Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, Thomas | Union Regular Army | 2nd Regiment, US Cavalry (Regular Army) | Cavalry |
| O'Brian, Thomas | California | 6th Regiment, California Infantry | Infantry |
| O'Brian, Thomas | Kentucky | Independent Battery C, Kentucky Light Artillery | Artillery |
| O'Brian, Thomas | Kentucky | 4th Regiment, Kentucky Cavalry | Cavalry |
| O'Brian, Thomas | New York | 54th Regiment, New York Infantry | Infantry |
| O'Brian, Thomas | Union Regular Army | 6th Regiment, US Infantry (Regular Army) | Infantry |
| O'Brian, Thomas | Massachusetts | 4th Regiment, Massachusetts Heavy Artillery | Artillery |
| O'Brian, Thomas | Massachusetts | 7th Regiment, Massachusetts Infantry | Infantry |
| O'Brian, Thomas | Massachusetts | 20th Regiment, Massachusetts Infantry | Infantry |
| O'Brian, Thomas | Illinois | 42nd Regiment, Illinois Infantry | Infantry |
| O'Brian, Thomas | Illinois | 57th Regiment, Illinois Infantry | Infantry |
| O'Brian, Thomas | Ohio | 10th Regiment, Ohio Infantry | Infantry |
| O'Brian, Thomas | Ohio | 45th Regiment, Ohio Infantry | Infantry |
| O'Brian, Thomas | Other Volunteers | 8th Regiment, US Veteran Volunteer Infantry | Infantry |
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.