Hi. I am a Beitel descendent also. Have you found the book by Ashlie H Beitel written in abt 1956? He lists many of the Beitels. In that book I found that your Sophia Matilda Beitel was the daughter of George Leibert Beitel. In the Moravian books, he was also known as John George Leibert Beitel. He married Anna Stotz. As far as I can tell, he lived and died in Northampton County, Pennsylvania. That should make the research easy for you to find and proof more information on them. I also come from George Leibert Beitel's father, but from a different wife. If you want to talk to me, write me. I have been proofing the work going back and presently only on my 3 and 4th great grandparents in documentation.
Good luck.
Sincerely, Sherry Bean