Hi jennifer,
I have a Samuel Peter Gahm that is my Great Grandfather John Edward Gahm's brother They were the children of Johannes Jr Gahm and Mary Shear. Samuel Peter Gahm married Sarah Belle Henderson.
Children were:
1. Della Mary Gahm
2. Thomas Robert Gahm
3 Grace E Gahm
4. Lee Irvin Gahm
5. Alice Bertha Gahm
6 Bessie Gahm
7 Willam Henery Gahm

Is this the family you are looking for? I have a lot more information contact me at nanc15@hotmail.com.
Nancy