John "Junior" Gotti - Gambino Acting Boss (1/4 Jewish)
Craig DePalma - Gambino Soldier (Half Jewish)
James "Jimmy" Martorano - New England Captain (1/4 Jewish)
Joseph "The Nodder" Sodano - Philadelphia Captain (1/4 Jewish}
Just for the record, unless you're referring to the Hebrew people, you can't be half or 1/4 Jewish as it's only a religion.