Among those not yet mentioned: Georgie Abrams, Max Baer, Newsboy Brown, Maxie Berger, Kid Kaplan, Solly Krieger, Battling Levinsky, King Levinsky, Sid Terris, Al "Bummy" Davis, Al Singer, Corporal Izzy Schwartz, Maxie Rosenbloom, Mike Rossman, Maxie Shapiro, Saoul Mamby, Al McCoy (bear with me on that one), and the great Rican-Jew Pedro Montanez.
How 'bout a nod to Daniel Mendoza, the father of scientific boxing and English heavyweight champ at 5-7, 160 pounds.
All good choices and it's good you mentioned pretty damn good Mike Rossman,who fought in a fantastic lightheavyweight era:good
Man, there are a TON of Jewish fighters. It used to be perfectly commonplace in the old days. Benny Leonard and Barney Ross are on a lot of top 25 p4p lists. http://boxrec.com/media/index.php/Category:Jewish_Boxers
Some of those guys almost certainly changed their names...from O'Reilly to Goldberg, etc. These are almost certainly all Irishman trying to capitalize on the ethnic thing.
I'm not really awake yet so I missed the great part in the thread title, but there are several greats to be found on this list.
No he wore the star of david on his trunks, but he wasnt even jewish. More recently Dana Rosenblatt. I know he wasnt great but along with Yuri Foreman probably the best Jewish guy in recent years.