Peter O'Brien (Medal of Honor)

Bornc. 1842
Dublin, Ireland

DiedSeptember 30, 1898(1898-09-30) (aged 55–56)
Chicago, Illinois, United States

Buried

Rosehill Cemetery, Chicago

Allegiance United States of America

Peter O'Brien
Born	c. 1842 Dublin, Ireland
Died	September 30, 1898(1898-09-30) (aged 55–56) Chicago, Illinois, United States
Buried	Rosehill Cemetery, Chicago
Allegiance	United States of America
Service / branch	United States Army
Years of service	1861–1865
Rank	Corporal
Unit	Company A, 1st New York Volunteer Cavalry "Lincoln Cavalry"
Battles / wars	Battle of Waynesboro American Civil War
Awards	Medal of Honor

Peter O'Brien (c. 1842 – September 30, 1898) was an American soldier who fought in the American Civil War. O'Brien received his country's highest award for bravery during combat, the Medal of Honor.^[1] O'Brien's medal was won for capturing a Confederate flag, and an officer with his horse and equipment, at the Battle of Waynesboro, Virginia, on March 2, 1865.^[1] He was honored with the award on March 26, 1865.^[1]

O'Brien was born in Dublin, Ireland. He joined the US Army from New York City in August 1861, and mustered out with his regiment in June 1865.^[2] He was later buried in Rosehill Cemetery, Chicago, Illinois.