Mike,
Good thoughts in your post on Five Doves regarding 77 Generations From God. I had this thought about the name variations you pointed out in the two lists. In ancient times it wasn't uncommon for people to have name changes, i.e. Abram-Abraham, Sarai-Sarah, Simon-Peter, Saul-Paul and so forth. This practice of changing names might explain a lot.
Just my thoughts.
YBIC
Bruce Baber