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, Thomas | New Hampshire | 2nd Regiment, New Hampshire Infantry | Infantry |
| O'Brian, Thomas | Maryland | 9th Regiment, Maryland Infantry (6 months, 1863-1864) | Infantry |
| O'Brian, Thomas | Maryland | 12th Regiment, Maryland Infantry (100 days, 1864) | Infantry |
| O'Brian, Thomas | New Hampshire | 9th Regiment, New Hampshire Infantry | Infantry |
| O'Brian, Thomas | Pennsylvania | 194th Regiment, Pennsylvania Infantry (100 days, 1864) | Infantry |
| O'Brian, Thomas | West Virginia | 2nd Regiment, West Virginia Cavalry | Cavalry |
| O'Brian, Thomas | New Jersey | 40th Regiment, New Jersey Infantry | Infantry |
| O'Brian, Thomas | New York | 61st Regiment, New York Infantry | Infantry |
| O'Brian, Thomas B. | West Virginia | 9th Regiment, West Virginia Infantry | Infantry |
| O'Brian, Thomas F. | Illinois | 127th Regiment, Illinois Infantry | Infantry |
| O'Brian, Tim | Wisconsin | 4th Regiment, Wisconsin Cavalry | Cavalry |
| O'Brian, Timothy | Indiana | 35th Regiment, Indiana Infantry | Infantry |
| O'Brian, Timothy | Iowa | 27th Regiment, Iowa Infantry | Infantry |
| O'Brian, Timothy | Wisconsin | 14th Regiment, Wisconsin Infantry | Infantry |
| O'Brian, Timothy | Michigan | 2nd Regiment, Michigan Infantry | Infantry |
| O'Brian, Timothy | Rhode Island | 1st Regiment, Rhode Island Light Artillery | Artillery |
| O'Brian, Timothy | New York | 34th Regiment, New York Infantry | Infantry |
| O'Brian, Timothy | Pennsylvania | 1st Regiment, Pennsylvania Light Artillery (14th Reserves) | Artillery |
| O'Brian, Timothy | New York | 8th Regiment, New York National Guard (30 days, 1863) | |
| O'Brian, Walter | Illinois | 151st Regiment, Illinois Infantry (1 year, 1865) | Infantry |
| O'Brian, Walter M. | Iowa | 21st Regiment, Iowa Infantry | Infantry |
| O'Brian, William | Ohio | 177th Regiment, Ohio Infantry | Infantry |
| O'Brian, William | Connecticut | 2nd Regiment, Connecticut Heavy Artillery | Artillery |
| O'Brian, William | Veteran Reserve | 1st Battalion, Veteran Reserve Corps | |
| O'Brian, William | Maryland | 1st Regiment, Maryland Infantry | Infantry |
| O'Brian, William | Maryland | 5th Regiment, Maryland Infantry | Infantry |
| O'Brian, William | Indiana | 12th Regiment, Indiana Infantry | Infantry |
| O'Brian, William | Indiana | 59th Regiment, Indiana Infantry | Infantry |
| O'Brian, William | Pennsylvania | 45th Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, William | Pennsylvania | 116th Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, William | Pennsylvania | 119th Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, William | Massachusetts | 61st Regiment, Massachusetts Infantry | Infantry |
| O'Brian, William | Illinois | 59th Regiment, Illinois Infantry | Infantry |
| O'Brian, William | Minnesota | 10th Regiment, Minnesota Infantry | Infantry |
| O'Brian, William | Connecticut | 5th Regiment, Connecticut Infantry | Infantry |
| O'Brian, William | Maryland | 1st Regiment, Maryland Cavalry | Cavalry |
| O'Brian, William | Wisconsin | 17th Regiment, Wisconsin Infantry | Infantry |
| O'Brian, William | Indiana | 97th Regiment, Indiana Infantry | Infantry |
| O'Brian, William | Pennsylvania | 9th Regiment, Pennsylvania Infantry (3 months, 1861) | Infantry |
| O'Brian, William | Pennsylvania | 52nd Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, William | Pennsylvania | 66th Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, William | Pennsylvania | 69th Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, William | Pennsylvania | 99th Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, William | Pennsylvania | 105th Regiment, Pennsylvania Infantry | Infantry |
| O'Brian, William | Union Regular Army | 17th Regiment, US Infantry (Regular Army) | Infantry |
| O'Brian, William | New York | 155th Regiment, New York Infantry | Infantry |
| O'Brian, William | New York | 170th Regiment, New York Infantry | Infantry |
| O'Brian, William | New York | 8th Regiment, New York Cavalry | Cavalry |
| O'Brian, William | Massachusetts | 27th Regiment, Massachusetts Infantry | Infantry |
| O'Brian, William | Massachusetts | 49th Regiment, Massachusetts Infantry (Militia) | 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 →
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Fold3 - Military Records →
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Ancestry - Military Records →
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