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 | Wisconsin | 46th Regiment, Wisconsin Infantry | Infantry |
| O'Brien, Michael | Indiana | 17th Regiment, Indiana Infantry | Infantry |
| O'Brien, Michael | Michigan | 1st Regiment, Michigan Light Artillery | Artillery |
| O'Brien, Michael | Michigan | 24th Regiment, Michigan Infantry | Infantry |
| O'Brien, Michael | Michigan | 27th Regiment, Michigan Infantry | Infantry |
| O'Brien, Michael | Indiana | 1st Regiment, Indiana Heavy Artillery | Artillery |
| O'Brien, Michael | Maine | 1st Battalion, Maine Light Artillery | Artillery |
| O'Brien, Michael | Maine | 1st Regiment, Maine Cavalry | Cavalry |
| O'Brien, Michael | Indiana | 35th Regiment, Indiana Infantry | Infantry |
| O'Brien, Michael | Union Regular Army | Hospital Steward (Regular Army) | |
| O'Brien, Michael | Union Regular Army | 16th Regiment, US Infantry (Regular Army) | Infantry |
| O'Brien, Michael | Pennsylvania | 3rd Regiment, Pennsylvania Heavy Artillery | Artillery |
| O'Brien, Michael | Pennsylvania | 3rd Regiment, Pennsylvania Cavalry | Cavalry |
| O'Brien, Michael | Pennsylvania | 13th Regiment, Pennsylvania Cavalry (117th Volunteers) | Cavalry |
| O'Brien, Michael | Pennsylvania | 50th Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, Michael | Pennsylvania | 69th Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, Michael | Pennsylvania | 82nd Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, Michael | Pennsylvania | 97th Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, Michael | Pennsylvania | 143rd Regiment, Pennsylvania Infantry | Infantry |
| O'Brien, Michael | Union Regular Army | 12th Regiment, US Infantry (Regular Army) | Infantry |
| O'Brien, Michael | New York | 104th Regiment, New York Infantry | Infantry |
| O'Brien, Michael | California | 2nd Regiment, California Cavalry | Cavalry |
| O'Brien, Michael | California | 2nd Regiment, California Infantry | Infantry |
| O'Brien, Michael | California | 6th Regiment, California Infantry | Infantry |
| O'Brien, Michael | California | 7th Regiment, California Infantry | Infantry |
| O'Brien, Michael | New York | 192nd Regiment, New York Infantry | Infantry |
| O'Brien, Michael | New York | 24th Regiment, New York Cavalry | Cavalry |
| O'Brien, Michael | Kentucky | 13th Regiment, Kentucky Infantry | Infantry |
| O'Brien, Michael | Kentucky | 16th Regiment, Kentucky Infantry | Infantry |
| O'Brien, Michael | New York | 61st Regiment, New York Infantry | Infantry |
| O'Brien, Michael | New York | 69th Regiment, New York State Militia | |
| O'Brien, Michael | New York | 89th Regiment, New York Infantry | Infantry |
| O'Brien, Michael | New York | 97th Regiment, New York Infantry | Infantry |
| O'Brien, Michael | Massachusetts | 9th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Michael | Massachusetts | 19th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Michael | Massachusetts | 22nd Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Michael | Massachusetts | 33rd Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Michael | Massachusetts | 32nd Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Michael | Massachusetts | 38th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, Michael | Illinois | 2nd Regiment, Illinois Light Artillery | Artillery |
| O'Brien, Michael | Illinois | 4th Regiment, Illinois Cavalry | Cavalry |
| O'Brien, Michael | Illinois | 7th Regiment, Illinois Infantry | Infantry |
| O'Brien, Michael | Illinois | 9th Regiment, Illinois Cavalry | Cavalry |
| O'Brien, Michael | Illinois | 10th Regiment, Illinois Infantry | Infantry |
| O'Brien, Michael | Illinois | 12th Regiment, Illinois Cavalry | Cavalry |
| O'Brien, Michael | Illinois | 18th Regiment, Illinois Infantry | Infantry |
| O'Brien, Michael | Illinois | 32nd Regiment, Illinois Infantry | Infantry |
| O'Brien, Michael | Illinois | 35th Regiment, Illinois Infantry | Infantry |
| O'Brien, Michael | Illinois | 58th Regiment, Illinois Infantry | Infantry |
| O'Brien, Michael | Illinois | 67th Regiment, Illinois 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.