U.S. Army
Robert I O'Brien
March 25, 1926—January 6, 1998
S SGT
Life Timeline
71 years1926
Born
March 25, 1926
US ARMY
Service Record
S SGT
1998
Passed Away
January 6, 1998
Service Record
Verified fields from cemetery source data.
Branch
US ARMY
Rank
S SGT
Sourced from official cemetery data; last updated May 30, 2026.Learn more