Family
- father James Langford Stack:
- mother Elizabeth Modini Stack:
- uncle Richard Bonelli:
- aunt Mona Chapman Bonelli: died on March 13, 1998 at age 95
- brother James Langford Stack:
- daughter Elizabeth Stack: born 1957
- son Charles Stack: born 1958
Companions
- wife Rosemarie Bowe: married January 23, 1956
