U.S. Army
John Frederick Demackiewicz Sr
July 7, 1935—December 3, 2004
SP4
Life Timeline
69 years1935
Born
July 7, 1935
US ARMY
Service Record
SP4
2004
Passed Away
December 3, 2004
Service Record
Verified fields from cemetery source data.
Branch
US ARMY
Rank
SP4
Sourced from official cemetery data; last updated May 30, 2026.Learn more