Yes, I believe you’re right. Chrissy’s father changed his name from, a Jewish sounding name, IIRC. A lot of showbiz types did that. One that comes to mind is the comedian Jack Benny; whose birth name was Benny Kubelski, probably Benjamin.
Mike Wallace = Myron Wallik
Chrissy’s mom is Jewish, but Mike’s several other wives were not, IIRC.