I just started researching my family so bear with me.
What I do know is my p. grandmother was Margaret Tefelski Zieman Moldenauer. 7 July 1914 - 30 March 1998. She had four children - Erwin (Bud) (No children), Barbara (Zieman) Norton (2 children 2 grandchildren), William Zieman (just me) and Robert Zieman (2 children 4 grandchildren).
She remarried after being widowed, but never had children under the name Moldenauer.

I also believe her mothers maiden name was Lachmund

I believe they all had the same father, Albert Zieman, and that generations back the spelling of our name went from two "n"s to one for some reason I am unsure of. Any one who would like to send me information is more the welcome, I would appreciate it and if there are other questions I like to help if possible

Deb
deb.zieman.schill@earthlink.net