Burke Surname for Schuykill/Mahanoy City PA area

I have minimal information on my Burke side. "Sonny" Burke married Isabelle Lukshides. They had my grandfather Francis J Burke. There was a child previously who accidentally was smothered to death while sleeping with them. I believe the name to be John Burke which may have been Sonny's real name as well. Who is left of the Sonny Burke progeny is in Allentown, PA.