***I wonder if she thought "Polish Catholic" would sound odd - but hey, living as I do in a section of Boston actually referred to as the "Polish Triangle," I can attest that there are indeed Polish Catholics lol. Though my landlord is 100% Irish. ;-)***
Ha! She was apparently thrown off because she had read that WEST SIDE STORY was originally supposed to be titled EAST SIDE STORY and was going to be about the romance between an Irish Catholic boy and a Jewish girl. So I guess she thought that was carried forward, and Tony was supposed to be both Irish Catholic AND Polish. But in the show itself, there are only references to him being Polish, and we're told that his real first name is Anton.