Thanks for your reply.
I found the family of William Rickabaugh - his father was Adam SR and his mother was Mary Koontz.
However, I did not find the mother of Sophia. Her father is Louis CHABOT (Lewis on the marriage license to Margaret Rees), but I am not sure if Margaret was her mother, as he married her sister too and had children by both sisters. I have his pedigree, as that is my family connection.
Regards,
Linda