List of Jewish major league baseball players of the past?

Maybe.

Generally speaking a player at a young age begins his base "career". For most children this would start in Little League. The player would advance from there.

play baseball

you play little league when your young and you practice allot and you get good at it then you play college then you go to mlb tryouts that's the main way there is others

Lip Pike in 1876, the first year of the National League, was documented as being Jewish, but there may have been others.i dont know