Father:
- John Jacob Kastler (*1901 - †1970)
Mother:
- Ernestine Rupp (*? - †?)
Siblings:
- John William Kastler (*? - †2000)
- Elizabeth Ann Kastler (*? - †?)
Wife:
- Dorothy Clark (*? - †?)
Children:
- Todd John Kastler (*? - †?)
- Scott Robert Kastler (*1958)
- Kirk William Kastler (*1960)
- Glenn Kastler (*1962)
Branch:
Note:
a) GEDCOM file: Swabian Kastlers.ged