US MERCHANT MARINE
John Joseph Hennessy
August 29, 1928—December 26, 1999
Life Timeline
71 years1928
Born
August 29, 1928
US MERCHANT MARINE
Service Record
World War II
World War II
Conflict
1999
Passed Away
December 26, 1999
Service Record
Verified fields from cemetery source data.
Branch
US MERCHANT MARINE
War / Conflict
World War II
Sourced from official cemetery data; last updated May 30, 2026.Learn more