Royal C. Zastrow is the son of Julia L. Cassingham and Herman Zastrow. He was born 24 Apr 1904 in Portage, Columbia, Wisconsin and died 16 Feb 1942 at age 37.

Children of Royal C. Zastrow:

1. Betty Zastrow was in 1931.
2. Luella Zastrow was born in 1933.
3. Mary Jean Zastrow was born in 1937. She was later adopted under the name Mary Jean Miller.
4. Richard Lawrence Zastrow was born in 1941. He was later adopted under the name Richard Lawrence Winiski.