Big Dom's nephew was a member here for quite some time.In fact he's who NYMafia and The "Other Guy" are coping most of their info from without his knowledge.
I'll ask Dom's nephew your question as I'm sure he'll have the answer. I know that Big Dom was Calabrasian and one of the Pittsburgh bosses that ran the Mahoning Valley.
Ya, Don King took Ernie Shavers away from a great guy in the paving business who was friends with Jo Jo Pecora.
When they all met in Youngstown, Blackie couldn't allow Jo Jo to make Don King an offer he couldn't refuse.

"Never walk in a room that you don't know how to get out of"- Henry Zottola