George's parents are believed to be C. BEAM (likely Christopher from 1850 Sandy Twp, Stark, Ohio census), and Margaret TEETER.
Mary's parents are known to be Peter KALEY and Mariah REINOEHL who lived in Honey Creek Township, Crawford, Illinois. They are buried in the New Hebron Cemetery with other Kaley and Reinoehl relatives.
Mariah's parents are usually given as Philip or John Philip REINOEHL and Elizabeth ZIMMERMAN, who are evidently buried in the same cemetery.
There seems to be a difference in the parentage of Elizabeth ZIMMERMAN in WorldConnect and other sites. Some give her father as Henry or Heinrich, while others as Leonard. Her mother is given as either Maria Elizabeth KELLER or Anna. None of the databases give primary or secondary source citations.