I had the hardest time picking the names for my peeps!
For Daisy, I started with Marion and headed toward Margaret, because it was English and old-fashioned -- but clearly she's *not* a Margaret. Daisy is a classic nickname for Margaret. Apparently the possible historical Marion was a Fitzwalter, so I picked Fitzhugh as a nod to that.
Kiki because I wanted the character to have one of those embarrassing nicknames that no adult should really have. I think I picked her surname because I liked the alliteration, but a friend pointed out that Curren is one of the Twilight character names, so I'm a bit embarrassed. Altho I bet Kiki likes the Twilight books, so maybe I was unintentionally giving that a nod.
I think I just picked Jack because it sounded good with 'Hollis' and seemed like a pirate-ish name. :)