US NAVY
John A Hennessy
July 10, 1948—September 21, 2020
BM3
Life Timeline
72 years1948
Born
July 10, 1948
US NAVY
Service Record
Vietnam War
Vietnam War
Conflict
BM3
2020
Passed Away
September 21, 2020
Service Record
Verified fields from cemetery source data.
Branch
US NAVY
Rank
BM3
War / Conflict
Vietnam War
Sourced from official cemetery data; last updated May 30, 2026.Learn more