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, John | New York | 41st Regiment, New York Infantry | Infantry |
| O'Brien, John | New York | 43rd Regiment, New York Infantry | Infantry |
| O'Brien, John | New York | 4th Regiment, New York Cavalry | Cavalry |
| O'Brien, John | New York | 75th Regiment, New York Infantry | Infantry |
| O'Brien, John | New York | 76th Regiment, New York Infantry | Infantry |
| O'Brien, John | New York | 7th Regiment, New York Heavy Artillery | Artillery |
| O'Brien, John | New York | 86th Regiment, New York Infantry | Infantry |
| O'Brien, John | New York | 94th Regiment, New York Infantry | Infantry |
| O'Brien, John | New York | 9th Regiment, New York Cavalry | Cavalry |
| O'Brien, John | Massachusetts | 1st Battalion, Massachusetts Heavy Artillery | Artillery |
| O'Brien, John | Massachusetts | 1st Regiment, Massachusetts Cavalry | Cavalry |
| O'Brien, John | Massachusetts | 1st Regiment, Massachusetts Heavy Artillery | Artillery |
| O'Brien, John | Massachusetts | 2nd Regiment, Massachusetts Heavy Artillery | Artillery |
| O'Brien, John | Massachusetts | 2nd Regiment, Massachusetts Cavalry | Cavalry |
| O'Brien, John | Massachusetts | 3rd Battalion, Massachusetts Riflemen (Militia) | |
| O'Brien, John | Massachusetts | 3rd Regiment, Massachusetts Heavy Artillery | Artillery |
| O'Brien, John | Massachusetts | 3rd Regiment, Massachusetts Cavalry | Cavalry |
| O'Brien, John | Massachusetts | 4th Regiment, Massachusetts Heavy Artillery | Artillery |
| O'Brien, John | Massachusetts | 4th Independent Battery, Massachusetts Light Artillery | Artillery |
| O'Brien, John | Massachusetts | 4th Regiment, Massachusetts Cavalry | Cavalry |
| O'Brien, John | Massachusetts | 5th Independent Battery, Massachusetts Light Artillery | Artillery |
| O'Brien, John | Massachusetts | 9th Unattached Company, Massachusetts Infantry (Militia) | Infantry |
| O'Brien, John | Massachusetts | 10th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, John | Massachusetts | 12th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, John | Massachusetts | 17th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, John | Massachusetts | 18th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, John | Massachusetts | 20th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, John | Massachusetts | 24th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, John | Massachusetts | 30th Company Unattached, Massachusetts Heavy Artillery | Artillery |
| O'Brien, John | Massachusetts | 26th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, John | Massachusetts | 27th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, John | Massachusetts | 28th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, John | Massachusetts | 30th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, John | Massachusetts | 33rd Regiment, Massachusetts Infantry | Infantry |
| O'Brien, John | Massachusetts | 32nd Regiment, Massachusetts Infantry | Infantry |
| O'Brien, John | Massachusetts | 37th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, John | Massachusetts | 47th Regiment, Massachusetts Infantry (Militia) | Infantry |
| O'Brien, John | Massachusetts | 48th Regiment, Massachusetts Infantry (Militia) | Infantry |
| O'Brien, John | Massachusetts | 58th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, John | Massachusetts | 59th Regiment, Massachusetts Infantry | Infantry |
| O'Brien, John | Massachusetts | 61st Regiment, Massachusetts Infantry | Infantry |
| O'Brien, John | Illinois | 8th Regiment, Illinois Cavalry | Cavalry |
| O'Brien, John | Illinois | 11th Regiment, Illinois Cavalry | Cavalry |
| O'Brien, John | Illinois | 13th Regiment, Illinois Infantry | Infantry |
| O'Brien, John | Illinois | 18th Regiment, Illinois Infantry | Infantry |
| O'Brien, John | Illinois | 22nd Regiment, Illinois Infantry | Infantry |
| O'Brien, John | Illinois | 23rd Regiment, Illinois Infantry | Infantry |
| O'Brien, John | Illinois | 39th Regiment, Illinois Infantry | Infantry |
| O'Brien, John | Illinois | 48th Regiment, Illinois Infantry | Infantry |
| O'Brien, John | Illinois | 49th 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.