Those are great questions. I do know that the Binfords (from my side of the family) took a great deal of pride in their lineage. My grandmother, Helen Elizabeth Binford, was quite a lady, as was her daughter, my mother, Dorothy McCoy Olsen.
I saw in some postings that some of the Binfords in Southern California (Alex?) were working on an addition to Mary Binford Bruner's book, but am not sure what happened to that work.