Seems like we're going to go with the shelter-given names, although one rarely calls a cat by their "formal" name. And so, without further ado . . . introducing . . .
Liesl
AKA: Lili ("Lee-Lee"), Lady, Lady Liesl, Lady Lili, Lady Kitty, Pretty Kitty
Minette
AKA: Minnie, Minnie Mouse, Minnie Muus, Mini Minnie, Baby Kitty, Crazy Kitty
Noah
AKA: Noah Bean, Bud, Buddy, Noah Jonathan Quail Higgins, Battle Cat, Big Guy