Bill (William) is my first cousin, Bertha's grandson as well. He is Bennett's son, my dad's older brother and oldest child of Bertha (Traber) and Bennett Karoly.
Thanks for the email today. According to dad, we're not second cousins, but "first cousins once removed." I would guess that the "once removed" would be on my part since you and dad are first cousins and I'm am one generation removed from you.