TheNameDBWar 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, Thomas | Ohio | 12th Regiment, Ohio Cavalry | Cavalry |
| O'Brien, Thomas | Ohio | 45th Regiment, Ohio Infantry | Infantry |
| O'Brien, Thomas | Ohio | 102nd Regiment, Ohio Infantry | Infantry |
| O'Brien, Thomas | Ohio | 124th Regiment, Ohio Infantry | Infantry |
| O'Brien, Thomas | Missouri | Engineer Regiment of the West, Missouri Volunteers | Engineers |
| O'Brien, Thomas | New Hampshire | 12th Regiment, New Hampshire Infantry | Infantry |
| O'Brien, Thomas | Iowa | 16th Regiment, Iowa Infantry | Infantry |
| O'Brien, Thomas | Other Volunteers | 8th Regiment, US Veteran Volunteer Infantry | Infantry |
| O'Brien, Thomas Francis | Illinois | 127th Regiment, Illinois Infantry | Infantry |
| O'Brien, Thomas L. | District Of Columbia | 1st Regiment, District of Columbia Infantry | Infantry |
| O'Brien, Thomas P. | Union Regular Army | General Service (Regular Army) | |
| O'Brien, Thomas S. | Pennsylvania | 128th Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, Thomas S. | Massachusetts | 29th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Thomas W. | Maryland | 1st Regiment, Maryland Cavalry, Potomac Home Brigade | Cavalry |
| O'Brien, Tim | New York | 64th Regiment, New York Infantry | Infantry |
| O'Brien, Timothy | New York | 158th Regiment, New York Infantry | Infantry |
| O'Brien, Timothy | Minnesota | 11th Regiment, Minnesota Infantry | Infantry |
| O'Brien, Timothy | Missouri | 2nd Regiment, Missouri Infantry | Infantry |
| O'Brien, Timothy | Iowa | 27th Regiment, Iowa Infantry | Infantry |
| O'Brien, Timothy | Vermont | 1st Regiment, Vermont Cavalry | Cavalry |
| O'Brien, Timothy | Louisiana | 2nd Regiment, Louisiana Cavalry | Cavalry |
| O'Brien, Timothy | Wisconsin | 4th Regiment, Wisconsin Cavalry | Cavalry |
| O'Brien, Timothy | Wisconsin | 14th Regiment, Wisconsin Infantry | Infantry |
| O'Brien, Timothy | Wisconsin | 28th Regiment, Wisconsin Infantry | Infantry |
| O'Brien, Timothy | Michigan | 2nd Regiment, Michigan Infantry | Infantry |
| O'Brien, Timothy | Maine | 29th Regiment, Maine Infantry | Infantry |
| O'Brien, Timothy | Indiana | 35th Regiment, Indiana Infantry | Infantry |
| O'Brien, Timothy | New York | 1st Regiment, New York Mounted Rifles | |
| O'Brien, Timothy | Massachusetts | 9th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Timothy | Massachusetts | 39th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Timothy | Massachusetts | 61st Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Timothy R. | Illinois | 9th Regiment, Illinois Infantry (3 months, 1861) | Infantry |
| O'Brien, William | Maine | 6th Regiment, Maine Infantry | Infantry |
| O'Brien, William | New York | 27th Regiment, New York Infantry | Infantry |
| O'Brien, William | District Of Columbia | 2nd Regiment, District of Columbia Infantry | Infantry |
| O'Brien, William | New York | 40th Regiment, New York Infantry | Infantry |
| O'Brien, William | Massachusetts | Unidentified Massachusetts | |
| O'Brien, William | Illinois | Unassigned Illinois Volunteers | |
| O'Brien, William | Connecticut | 7th Regiment, Connecticut Infantry | Infantry |
| O'Brien, William | Veteran Reserve | Unassigned Veteran Reserve Corps | |
| O'Brien, William | Michigan | 24th Regiment, Michigan Infantry | Infantry |
| O'Brien, William | Indiana | 22nd Regiment, Indiana Infantry | Infantry |
| O'Brien, William | Union Regular Army | US Army (Regular Army) | |
| O'Brien, William | Pennsylvania | 105th Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, William | Pennsylvania | 106th Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, William | Union Regular Army | Hospital Steward (Regular Army) | |
| O'Brien, William | Massachusetts | 1st Regiment, Massachusetts Infantry | Infantry |
| O'Brien, William | Ohio | 11th Regiment, Ohio Cavalry | Cavalry |
| O'Brien, William | Ohio | 124th Regiment, Ohio Infantry | Infantry |
| O'Brien, William | Ohio | 189th Regiment, Ohio 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.
Ancestry - Military Records →
Search military records on Ancestry.com including Civil War service records, draft cards, and pension files.