This link below can tell you about "Steele." Sammy got his nick name wrong...it's "Stale" and he didn't lead an Irish group.

http://www.capitalcentury.com/1981.html

I've never been able to find out who Pal Joey was. Could be Joseph Costello (who was a Philly guy from Trenton). Not sure that's him as it seems the Gambinos were taking care of the hit.

Edit: Pal Joey was most likely Joseph Farinella who operated Pal Joey's restaurant in Trenton.