@Setanta,
Nope , went right over my head because , in my family, on my one Polak grammas side, the family name was MARKS and I had an Uncle named KAROL. SO the name of Karl Marx wasnt strange .NOW, I dont know if weve got any Mordechais in our family (I think that KArl's father changed his name when he "converted" also) but we have evidence that , on the side of my family that was in the Tsars Pogroms, several had changed their religion ferom Jew to Russian Orthodox. Establishing the fact that Jews can be very accomodating to new ideas in religion