First, Thank you for the replies. To answer your last post, I don't definitively know. I can only go by what my mother told me several decades ago. I only started my research in 2002, 7 years after my she passed away. She mentioned an Armenian connection and that my grandmother's maiden name was Seth. All the records I have are from the Roman Catholic church. It could be that Augustine converted to Catholicism to marry Elizabeth Fennell and changed his name slightly at the time.
If it is ok with you, I'll email you (at the address you have listed) the scans of the marriage records as well as what info I have for that side of the family.