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, William | Minnesota | 10th Regiment, Minnesota Infantry | Infantry |
| O'Brien, William | Missouri | 2nd Regiment, Missouri Light Artillery | Artillery |
| O'Brien, William | Missouri | 7th Regiment, Missouri Infantry | Infantry |
| O'Brien, William | Missouri | 10th Regiment, Missouri Cavalry | Cavalry |
| O'Brien, William | Connecticut | 1st Regiment, Connecticut Heavy Artillery | Artillery |
| O'Brien, William | Connecticut | 5th Regiment, Connecticut Infantry | Infantry |
| O'Brien, William | Connecticut | 15th Regiment, Connecticut Infantry | Infantry |
| O'Brien, William | Connecticut | 20th Regiment, Connecticut Infantry | Infantry |
| O'Brien, William | Connecticut | 24th Regiment, Connecticut Infantry | Infantry |
| O'Brien, William | Veteran Reserve | 1st Regiment, Veteran Reserve Corps | |
| O'Brien, William | Veteran Reserve | 2nd Battalion, Veteran Reserve Corps | |
| O'Brien, William | Veteran Reserve | 8th Regiment, Veteran Reserve Corps | |
| O'Brien, William | Veteran Reserve | 9th Regiment, Veteran Reserve Corps | |
| O'Brien, William | Vermont | 1st Regiment, Vermont Cavalry | Cavalry |
| O'Brien, William | Union Regular Army | US Rifles (Regular Army) | |
| O'Brien, William | Maryland | Purnell Legion, Maryland Cavalry | Cavalry |
| O'Brien, William | Maryland | 1st Regiment, Maryland Cavalry | Cavalry |
| O'Brien, William | Maryland | 3rd Regiment, Maryland Cavalry | Cavalry |
| O'Brien, William | Maryland | 6th Regiment, Maryland Infantry | Infantry |
| O'Brien, William | Wisconsin | 3rd Regiment, Wisconsin Infantry | Infantry |
| O'Brien, William | Wisconsin | 8th Regiment, Wisconsin Infantry | Infantry |
| O'Brien, William | Wisconsin | 17th Regiment, Wisconsin Infantry | Infantry |
| O'Brien, William | Wisconsin | 28th Regiment, Wisconsin Infantry | Infantry |
| O'Brien, William | Wisconsin | 47th Regiment, Wisconsin Infantry | Infantry |
| O'Brien, William | Indiana | 16th Regiment, Indiana Infantry | Infantry |
| O'Brien, William | Michigan | 14th Regiment, Michigan Infantry | Infantry |
| O'Brien, William | Indiana | 33rd Regiment, Indiana Infantry | Infantry |
| O'Brien, William | Indiana | 97th Regiment, Indiana Infantry | Infantry |
| O'Brien, William | Pennsylvania | 2nd Regiment, Pennsylvania Cavalry (59th Volunteers) | Cavalry |
| O'Brien, William | Union Regular Army | General Service Cavalry (Regular Army) | Cavalry |
| O'Brien, William | Pennsylvania | 28th Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, William | Pennsylvania | 52nd Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, William | Pennsylvania | 66th Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, William | Pennsylvania | 69th Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, William | Pennsylvania | 96th Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, William | Pennsylvania | 99th Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, William | Pennsylvania | 147th Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, William | Union Regular Army | 4th Regiment, US Artillery (Regular Army) | Artillery |
| O'Brien, William | Rhode Island | 1st Regiment, Rhode Island Cavalry | Cavalry |
| O'Brien, William | New York | 165th Regiment, New York Infantry | Infantry |
| O'Brien, William | New York | 16th Regiment, New York Cavalry | Cavalry |
| O'Brien, William | California | 1st Regiment, California Infantry | Infantry |
| O'Brien, William | New York | 179th Regiment, New York Infantry | Infantry |
| O'Brien, William | New York | 3rd Regiment, New York Light Artillery | Artillery |
| O'Brien, William | Kentucky | 21st Regiment, Kentucky Infantry | Infantry |
| O'Brien, William | New York | 79th Regiment, New York Infantry | Infantry |
| O'Brien, William | New York | 8th Regiment, New York Cavalry | Cavalry |
| O'Brien, William | New York | 98th Regiment, New York Infantry | Infantry |
| O'Brien, William | Massachusetts | 2nd Regiment, Massachusetts Heavy Artillery | Artillery |
| O'Brien, William | Massachusetts | 2nd Independent Battery, Massachusetts Light Artillery | Artillery |
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.