US NAVY
John Robert Hartman
February 26, 1922—February 17, 2001
LTJG
Life Timeline
78 years1922
Born
February 26, 1922
US NAVY
Service Record
World War II
World War II
Conflict
LTJG
2001
Passed Away
February 17, 2001
Service Record
Verified fields from cemetery source data.
Branch
US NAVY
Rank
LTJG
War / Conflict
World War II
Sourced from official cemetery data; last updated May 30, 2026.Learn more