Hi Kristen,
I used to date a girl named Elaine Haecker in Zanesville OH. She had a grandfather there, and the name Adolf sounds familiar, but I'm not 100% sure. Anyway, Elaine and her family moved to Seguin TX around 1978 or 1979. The grandfather may have followed later, but I joined the Navy and moved away so I don't know.
Hope this helps
John Schaefer