US NAVY
Gregory R O'Brien
November 17, 1951—October 4, 2020
RM1
Life Timeline
68 years1951
Born
November 17, 1951
US NAVY
Service Record
Vietnam War
Vietnam War
Conflict
RM1
2020
Passed Away
October 4, 2020
Service Record
Verified fields from cemetery source data.
Branch
US NAVY
Rank
RM1
War / Conflict
Vietnam War
Sourced from official cemetery data; last updated May 30, 2026.Learn more