War Records: O'Brien

Found 1,738 Civil War soldier records for surname "O'Brien" (Union: 1389, Confederacy: 349).

1,738 Results

Union (1,389) Confederacy (349)
Name State Unit Function
O'Brien, Edward Michigan 9th Regiment, Michigan Cavalry Cavalry
O'Brien, Edward Pennsylvania 69th Regiment, Pennsylvania Infantry Infantry
O'Brien, Edward Pennsylvania 71st Regiment, Pennsylvania Infantry Infantry
O'Brien, Edward Pennsylvania 110th Regiment, Pennsylvania Infantry Infantry
O'Brien, Edward Pennsylvania 115th Regiment, Pennsylvania Infantry Infantry
O'Brien, Edward Pennsylvania 134th Regiment, Pennsylvania Infantry Infantry
O'Brien, Edward Union Regular Army US Army (Regular Army)
O'Brien, Edward New York 147th Regiment, New York Infantry Infantry
O'Brien, Edward Kentucky 5th Regiment, Kentucky Infantry Infantry
O'Brien, Edward New York 6th Regiment, New York Cavalry Cavalry
O'Brien, Edward Massachusetts 2nd Regiment, Massachusetts Heavy Artillery Artillery
O'Brien, Edward Massachusetts 9th Regiment, Massachusetts Infantry Infantry
O'Brien, Edward Massachusetts 16th Regiment, Massachusetts Infantry Infantry
O'Brien, Edward Massachusetts 48th Regiment, Massachusetts Infantry (Militia) Infantry
O'Brien, Edward Illinois 17th Regiment, Illinois Cavalry Cavalry
O'Brien, Edward Illinois 23rd Regiment, Illinois Infantry Infantry
O'Brien, Edward Illinois 42nd Regiment, Illinois Infantry Infantry
O'Brien, Edward Minnesota Brackett's Battalion, Minnesota Cavalry Cavalry
O'Brien, Edward Connecticut 1st Regiment, Connecticut Heavy Artillery Artillery
O'Brien, Edward New Hampshire 14th Regiment, New Hampshire Infantry Infantry
O'Brien, Edward E. Wisconsin 40th Regiment, Wisconsin Infantry (100 days, 1864) Infantry
O'Brien, Enoc Ohio 63rd Regiment, Ohio Infantry Infantry
O'Brien, Felix Vermont 9th Regiment, Vermont Infantry Infantry
O'Brien, Francis Maine 2nd Regiment, Maine Cavalry Cavalry
O'Brien, Francis Pennsylvania 81st Regiment, Pennsylvania Infantry Infantry
O'Brien, Francis New Jersey 10th Regiment, New Jersey Infantry Infantry
O'Brien, Francis New York 1st Regiment, New York Mounted Rifles
O'Brien, Francis New York 52nd Regiment, New York Infantry Infantry
O'Brien, Francis Missouri 5th Regiment, Missouri Infantry (3 months, 1861) Infantry
O'Brien, Francis B. Minnesota 10th Regiment, Minnesota Infantry Infantry
O'Brien, Frank Connecticut 1st Regiment, Connecticut Cavalry Cavalry
O'Brien, Frank Iowa 8th Regiment, Iowa Infantry Infantry
O'Brien, Frank Connecticut 6th Regiment, Connecticut Infantry Infantry
O'Brien, Frank Maine 1st Regiment, Maine Heavy Artillery Artillery
O'Brien, Frank Delaware 7th Regiment, Delaware Infantry Infantry
O'Brien, Frank Massachusetts 33rd Regiment, Massachusetts Infantry Infantry
O'Brien, Franklin Pennsylvania 99th Regiment, Pennsylvania Infantry Infantry
O'Brien, Frederick Kentucky 6th Regiment, Kentucky Cavalry Cavalry
O'Brien, Frederick Ohio 2nd Independent Battery, Ohio Light Artillery Artillery
O'Brien, Frederick Ohio 17th Independent Battery, Ohio Light Artillery Artillery
O'Brien, Frederick E. New Jersey 33rd Regiment, New Jersey Infantry Infantry
O'Brien, George New York 11th Regiment, New York Infantry Infantry
O'Brien, George Illinois 88th Regiment, Illinois Infantry Infantry
O'Brien, George Connecticut 1st Regiment, Connecticut Cavalry Cavalry
O'Brien, George Connecticut 7th Regiment, Connecticut Infantry Infantry
O'Brien, George Ohio 1st Regiment, Ohio Heavy Artillery Artillery
O'Brien, George Kansas 1st Independent Battery, Kansas Light Artillery Artillery
O'Brien, George Iowa 5th Regiment, Iowa Cavalry Cavalry
O'Brien, George Iowa 5th Regiment, Iowa Infantry Infantry
O'Brien, George Connecticut 2nd Regiment, Connecticut Heavy Artillery Artillery

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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.

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