Father:
- Johann Georg Kastler (*1859 - †?)
Mother:
- Katharina Rau (*? - †?)
Sibling:
- Emma Kastler (*? - †?)
Wife:
- Henny Amalie Prasse (*? - †?)
Children:
- Eugen Hans Kastler (*? - †?)
- Kurt Kastler (*? - †?)
- Ingrid Kastler (*? - †?)
Branch:
Note:
a) GEDCOM file: Swabian Kastlers.ged