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, Michael | New York | 149th Regiment, New York Infantry | Infantry |
| O'Brien, Michael | New York | 2nd Regiment, New York Infantry | Infantry |
| O'Brien, Michael | New Jersey | Unassigned New Jersey | |
| O'Brien, Michael | Wisconsin | 20th Regiment, Wisconsin Infantry | Infantry |
| O'Brien, Michael | Kentucky | Unassigned Kentucky Volunteers | |
| O'Brien, Michael | Ohio | 192nd Regiment, Ohio Infantry | Infantry |
| O'Brien, Michael | Veteran Reserve | Unassigned Veteran Reserve Corps | |
| O'Brien, Michael | Michigan | 7th Regiment, Michigan Infantry | Infantry |
| O'Brien, Michael | Union Regular Army | General Service (Regular Army) | |
| O'Brien, Michael | Pennsylvania | 27th Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, Michael | Pennsylvania | 61st Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, Michael | Union Regular Army | Ordnance Department (Regular Army) | |
| O'Brien, Michael | Union Regular Army | US Army (Regular Army) | |
| O'Brien, Michael | New York | Unidentified New York | |
| O'Brien, Michael | Massachusetts | 1st Regiment, Massachusetts Cavalry | Cavalry |
| O'Brien, Michael | Massachusetts | 1st Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Michael | Massachusetts | 2nd Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Michael | Massachusetts | 24th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Michael | Massachusetts | 28th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Michael | Ohio | 8th Regiment, Ohio Infantry | Infantry |
| O'Brien, Michael | Ohio | 10th Regiment, Ohio Cavalry | Cavalry |
| O'Brien, Michael | Ohio | 188th Regiment, Ohio Infantry | Infantry |
| O'Brien, Michael | Ohio | 189th Regiment, Ohio Infantry | Infantry |
| O'Brien, Michael | Ohio | 198th Regiment, Ohio Infantry | Infantry |
| O'Brien, Michael | Kansas | 1st Regiment, Kansas Infantry | Infantry |
| O'Brien, Michael | Minnesota | 6th Regiment, Minnesota Infantry | Infantry |
| O'Brien, Michael | Missouri | 2nd Regiment, Missouri Light Artillery | Artillery |
| O'Brien, Michael | Missouri | 30th Regiment, Missouri Infantry | Infantry |
| O'Brien, Michael | Tennessee | 3rd Regiment, Tennessee Cavalry | Cavalry |
| O'Brien, Michael | Iowa | 5th Regiment, Iowa Cavalry | Cavalry |
| O'Brien, Michael | Iowa | 9th Regiment, Iowa Infantry | Infantry |
| O'Brien, Michael | Connecticut | 1st Regiment, Connecticut Heavy Artillery | Artillery |
| O'Brien, Michael | Connecticut | 6th Regiment, Connecticut Infantry | Infantry |
| O'Brien, Michael | Connecticut | 7th Regiment, Connecticut Infantry | Infantry |
| O'Brien, Michael | Connecticut | 9th Regiment, Connecticut Infantry | Infantry |
| O'Brien, Michael | Connecticut | 20th Regiment, Connecticut Infantry | Infantry |
| O'Brien, Michael | Connecticut | 22nd Regiment, Connecticut Infantry | Infantry |
| O'Brien, Michael | Connecticut | 28th Regiment, Connecticut Infantry | Infantry |
| O'Brien, Michael | Connecticut | 15th Regiment, Connecticut Infantry | Infantry |
| O'Brien, Michael | New Hampshire | 14th Regiment, New Hampshire Infantry | Infantry |
| O'Brien, Michael | Veteran Reserve | 2nd Battalion, Veteran Reserve Corps | |
| O'Brien, Michael | Veteran Reserve | 3rd Regiment, Veteran Reserve Corps | |
| O'Brien, Michael | Veteran Reserve | 8th Regiment, Veteran Reserve Corps | |
| O'Brien, Michael | Vermont | 2nd Regiment, Vermont Infantry | Infantry |
| O'Brien, Michael | Nevada | 1st Battalion, Nevada Cavalry | Cavalry |
| O'Brien, Michael | Maryland | 1st Regiment, Maryland Infantry | Infantry |
| O'Brien, Michael | Louisiana | 1st Regiment, Louisiana Cavalry | Cavalry |
| O'Brien, Michael | Louisiana | 2nd Regiment, Louisiana Infantry | Infantry |
| O'Brien, Michael | Wisconsin | 13th Regiment, Wisconsin Infantry | Infantry |
| O'Brien, Michael | Wisconsin | 44th Regiment, Wisconsin 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.