US NAVY
John P Hannigan
June 29, 1958—September 5, 2015
HT3
Life Timeline
57 years1958
Born
June 29, 1958
US NAVY
Service Record
HT3
2015
Passed Away
September 5, 2015
Service Record
Verified fields from cemetery source data.
Branch
US NAVY
Rank
HT3
Sourced from official cemetery data; last updated May 30, 2026.Learn more