1. Gerhardt Duker was born in Ankum, Hanover, Germany. He died before 1847 in Ankum, Hanover.
Gerhardt married Elizabeth (wife of Gerhard Duker) Unknown in Ankum, Hanover. Elizabeth was born about 1795 in Ankum, Hanover, Germany. She died after 1870 in Quincy, Illinois.
[Notes]
Gerhardt and Elizabeth had the following children:
+ 2 M i Henry Duker + 3 M ii Francis (Frank) Duker + 4 M iii Theodore Duker + 5 M iv John Hermann Duker