BarTx

I am searching for a movie from the 30's or 40's. It is about a male orphan/foundling. Near the begining, there is a Bible that came w/ the child. The name was written in the Bible is not the child's name, which is Jewish, but a similar Irish name. The boy grows up thinking he's Irish, but finds out his Jewish heritage when he is grown. Maybe the names were Kane and Caine or perhaps Cohen and Cohan. Anyone know the title? THANKS!