Hi!! Great to get a reply to my query. Actually my greatgrandfather was William's youngest brother. We have the family bible, and I can mail you a photocopy of the births/deaths/marriages pages. The farthest we can go back is Joseph Tevalt and Lucinda Orndorff. They were the parents.
Then came the 11 children: Jemima Ann, Joseph Henry, Morgan Westfall, William Mason, John Madison, Philip Millard Filmore, Sarah Ellen, Daniel Rufus, Mary Catherine, Selma Nancy Josephine, and Charles Augustine. My great grand father was Charles Augustine.
I did not know Marion had a sister. I have recently found two others searching our family tree from different directions. One is Sidney Feathers, who is related to Marion's wife Nora Boyce, and the other is Tammy Tevault, who has traced her family tree back to a Peter Tevalt, who is of the same approx. Generation as Joseph Tevalt. My father remembers Marion from when he was a little boy.
There is also a relation, a Henry A. Tevalt in 1848 married a Frances E. Curl. Maybe that connects to you somehow too.
I would love to get more information, and we are all trying to find more info. back past the Joseph Tevalt generation. There are few records, and we are all just learning this stuff. So in closing, YES, I would love to trade info. Please e-mail me.
Thanks, Jane Tevalt.