text: does harry connick jr. have any cousins in rochester ny or a sister ? i know of a woman who's maiden name is connick and has photos of him all over her house. like family photos. i  know that he has a sister but the sisters name and her's are not the same. i am just curious. i don't know her on a personal level to where i could ask her. if she has pic's all over the place she either just coincidental has his last name and is just abnormally obsessed--in which case you should ask her because i'd imagine she'd be extremely excited to tell someone of her fan worshiping. and if she really is related, then still ask her. you could say she resembles him and you just wanted to know.