Hello my name is Laniece, and I am of the family line of Schweitzer & Seebach. Constant is not the youngest of Andrew Seebach & Maria Eva Kiebor. In 1836 they had Eva Maria Seebach.
Margaret E. Seebach was my grandfather's mother.I have a Family tree from my Great aunt Emma Schwetizer.
I realize you are lookind the Deppe family, but maybe this correction could help. Laniece