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, Michael Ohio 4th Regiment, Ohio Cavalry Cavalry
O'Brien, Michael Ohio 4th Battalion, Ohio Infantry Infantry
O'Brien, Michael Ohio 10th Regiment, Ohio Infantry Infantry
O'Brien, Michael Ohio 11th Regiment, Ohio Infantry Infantry
O'Brien, Michael Ohio 19th Regiment, Ohio Infantry Infantry
O'Brien, Michael Ohio 30th Regiment, Ohio Infantry Infantry
O'Brien, Michael Ohio 42nd Regiment, Ohio Infantry Infantry
O'Brien, Michael Ohio 50th Regiment, Ohio Infantry Infantry
O'Brien, Michael Ohio 61st Regiment, Ohio Infantry Infantry
O'Brien, Michael Ohio 67th Regiment, Ohio Infantry Infantry
O'Brien, Michael Ohio 183rd Regiment, Ohio Infantry Infantry
O'Brien, Michael Illinois 134th Regiment, Illinois Infantry (100 days, 1864) Infantry
O'Brien, Michael Illinois Walker's Independent Company, Illinois Infantry (3 months, 1861) Infantry
O'Brien, Michael Missouri 2nd Regiment, Missouri Cavalry (Merrill's Horse) Cavalry
O'Brien, Michael D. Connecticut 22nd Regiment, Connecticut Infantry Infantry
O'Brien, Michael L. G. New York 53rd Regiment, New York Infantry (1st) Infantry
O'Brien, Michael L. G. United States Colored Troops 23rd Regiment, United States Colored Infantry Infantry
O'Brien, Michael P. Veteran Reserve 22nd Regiment, Veteran Reserve Corps
O'Brien, Mikel Louisiana 2nd Regiment, Louisiana Cavalry Cavalry
O'Brien, Miles Kansas 2nd Regiment, Kansas Cavalry Cavalry
O'Brien, Miles Kansas 15th Regiment, Kansas Cavalry Cavalry
O'Brien, Morgan Kentucky 28th Regiment, Kentucky Infantry Infantry
O'Brien, Morris New York 88th Regiment, New York Infantry Infantry
O'Brien, Morris Connecticut 1st Regiment, Connecticut Heavy Artillery Artillery
O'Brien, Morris Connecticut 8th Regiment, Connecticut Infantry Infantry
O'Brien, Morris Pennsylvania 28th Regiment, Pennsylvania Infantry Infantry
O'Brien, Morris Missouri 9th Regiment, Missouri State Militia Cavalry Cavalry
O'Brien, Moses Wisconsin 3rd Regiment, Wisconsin Infantry Infantry
O'Brien, Moses Kansas 19th Regiment, Kansas Cavalry (6 months) Cavalry
O'Brien, Nicholas Minnesota 3rd Regiment, Minnesota Infantry Infantry
O'Brien, Nicholas Wisconsin 14th Regiment, Wisconsin Infantry Infantry
O'Brien, Nicholas Illinois 38th Regiment, Illinois Infantry Infantry
O'Brien, Nicholas J. Iowa 7th Regiment, Iowa Cavalry Cavalry
O'Brien, Owen Tennessee 10th Regiment, Tennessee Infantry Infantry
O'Brien, Owen Massachusetts 11th Regiment, Massachusetts Infantry Infantry
O'Brien, Partick New Mexico Territory 1st Regiment, New Mexico Cavalry Cavalry
O'Brien, Pat New Jersey 8th Regiment, New Jersey Infantry Infantry
O'Brien, Patrick Wisconsin 51st Regiment, Wisconsin Infantry Infantry
O'Brien, Patrick New Hampshire 1st Regiment, New Hampshire Cavalry Cavalry
O'Brien, Patrick New York 41st Regiment, New York Infantry Infantry
O'Brien, Patrick Missouri 11th Regiment, Missouri Infantry Infantry
O'Brien, Patrick New Jersey Unassigned New Jersey
O'Brien, Patrick Illinois Unassigned Illinois Volunteers
O'Brien, Patrick Iowa 21st Regiment, Iowa Infantry Infantry
O'Brien, Patrick Union Regular Army Ordnance Department (Regular Army)
O'Brien, Patrick Maryland 5th Regiment, Maryland Infantry Infantry
O'Brien, Patrick Wisconsin 44th Regiment, Wisconsin Infantry Infantry
O'Brien, Patrick Union Regular Army US Army (Regular Army)
O'Brien, Patrick Maine 1st Regiment, Maine Heavy Artillery Artillery
O'Brien, Patrick Union Regular Army General Service (Regular Army)

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