U.S. Army
Leon Joseph Hackenmiller
Unknown—October 12, 2018
SP3
Life Timeline
Birth
Born
US ARMY
Service Record
SP3
2018
Passed Away
October 12, 2018
Service Record
Verified fields from cemetery source data.
Branch
US ARMY
Rank
SP3
Sourced from official cemetery data; last updated May 30, 2026.Learn more