Wilhelmina e Koch - Pedigree | FamilyCentral
 Abt 1869 - 8 Sep 1946
  Children
    1.
Living
2.
Lilly Jahnke
    3.
Living
4.
Walter C Jahnke
5.
Elsie Jahnke
6.
Emil Henry Johnke Jahnke
    7.
Living