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, George | Connecticut | 3rd Regiment, Connecticut Infantry | Infantry |
| O'Brien, George | Veteran Reserve | 12th Regiment, Veteran Reserve Corps | |
| O'Brien, George | Louisiana | 1st Regiment, Louisiana Infantry | Infantry |
| O'Brien, George | Indiana | 31st Regiment, Indiana Infantry | Infantry |
| O'Brien, George | Delaware | 4th Regiment, Delaware Infantry | Infantry |
| O'Brien, George | California | 1st Regiment, California Infantry | Infantry |
| O'Brien, George | Massachusetts | 3rd Regiment, Massachusetts Heavy Artillery | Artillery |
| O'Brien, George | Illinois | 53rd Regiment, Illinois Infantry | Infantry |
| O'Brien, George | Ohio | 26th Regiment, Ohio Infantry | Infantry |
| O'Brien, George E. | Kentucky | Simmonds' Battery, Kentucky Light Artillery | Artillery |
| O'Brien, George E. | New York | 3rd Independent Battery, New York Light Artillery | Artillery |
| O'Brien, George M. | Iowa | 7th Regiment, Iowa Cavalry | Cavalry |
| O'Brien, Henry | Pennsylvania | 3rd Regiment, Pennsylvania Heavy Artillery | Artillery |
| O'Brien, Henry | Massachusetts | 3rd Regiment, Massachusetts Cavalry | Cavalry |
| O'Brien, Henry | Connecticut | 15th Regiment, Connecticut Infantry | Infantry |
| O'Brien, Henry | Veteran Reserve | 1st Regiment, Veteran Reserve Corps | |
| O'Brien, Henry | Veteran Reserve | 4th Regiment, Veteran Reserve Corps | |
| O'Brien, Henry | Pennsylvania | 27th Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, Henry | Pennsylvania | 49th Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, Henry | New Jersey | 2nd Regiment, New Jersey Cavalry | Cavalry |
| O'Brien, Henry | California | 2nd Regiment, California Cavalry | Cavalry |
| O'Brien, Henry | New York | 25th Regiment, New York Cavalry | Cavalry |
| O'Brien, Henry | Massachusetts | 2nd Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Henry | Massachusetts | 12th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Henry | Massachusetts | 15th Independent Battery, Massachusetts Light Artillery | Artillery |
| O'Brien, Henry | Massachusetts | 30th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Henry | Illinois | 7th Regiment, Illinois Infantry | Infantry |
| O'Brien, Henry | Illinois | 45th Regiment, Illinois Infantry | Infantry |
| O'Brien, Henry | Illinois | 74th Regiment, Illinois Infantry | Infantry |
| O'Brien, Henry D. | Minnesota | 1st Regiment, Minnesota Infantry | Infantry |
| O'Brien, Horace | Vermont | 5th Regiment, Vermont Infantry | Infantry |
| O'Brien, Hugh | Pennsylvania | 69th Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, Hugh | New York | 164th Regiment, New York Infantry | Infantry |
| O'Brien, Hugh | Massachusetts | 1st Regiment, Massachusetts Cavalry | Cavalry |
| O'Brien, Isaac | New York | 173rd Regiment, New York Infantry | Infantry |
| O'Brien, Isaac | Ohio | 63rd Regiment, Ohio Infantry | Infantry |
| O'Brien, J.C. | Kentucky | 1st Regiment, Kentucky Infantry | Infantry |
| O'Brien, Jacson | Kentucky | Independent Battery E, Kentucky Light Artillery | Artillery |
| O'Brien, James | Pennsylvania | 82nd Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, James | Ohio | 124th Regiment, Ohio Infantry | Infantry |
| O'Brien, James | Rhode Island | 12th Regiment, Rhode Island Infantry | Infantry |
| O'Brien, James | New York | 9th Regiment, New York Cavalry | Cavalry |
| O'Brien, James | Massachusetts | 20th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, James | Missouri | 30th Regiment, Missouri Infantry | Infantry |
| O'Brien, James | Iowa | 10th Regiment, Iowa Infantry | Infantry |
| O'Brien, James | Connecticut | 1st Regiment, Connecticut Cavalry | Cavalry |
| O'Brien, James | Connecticut | 5th Regiment, Connecticut Infantry | Infantry |
| O'Brien, James | Connecticut | 12th Regiment, Connecticut Infantry | Infantry |
| O'Brien, James | Connecticut | 21st Regiment, Connecticut Infantry | Infantry |
| O'Brien, James | Veteran Reserve | Unassigned Veteran Reserve Corps |
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.