Shadrach,
Mary Evaline Chadwick (b. 1869) would have been approximately 16 or 17 years old when she married A.J. Frazier. Both were my great-grandparents.
Mary E. Chadwick was the daughter of George Riley Chadwick, not John, so I think it is unlikely that she is in your line.
Not really sure what your question is, but I've done a bit of research on Rising Fawn Chadwicks, and of course Linda is the overall expert. Hope this helps a little.
Lee Frazier
Alexandria, VA