Now that I give it further thought, the book’s author missed Jimmie Reese, who played with Babe Ruth in the 30s (and who, IIRC, was the last surviving teammate of Ruth’s).
Other pre-1980s players include:
Elliot Maddox, a convert* who played for the Yankees in the 70s.
Ken Holtzman (1970s)
For the record, my favorite Jewish-themed baseball nicknames are:
Mike Epstein (SuperJew)
Moses Solomon (The Rabbi of Swat)
The Wolf
* I have no idea about the halachic validity of Elliott’s geirus. However, I doubt that yitayningwut’s book would have been too worried about that either.