There's an interview with Julie Morstad up at VM where she talks about her work, her work-life balance and her influences:
I have always been inspired by the illustrations in children’s books. Some of my favorites are Mary Blair, Gyo Fujikawa, Alice and Martin Provensen, Barbara Cooney, Tove Jannson, Bruno Munari, and of course, Maurice Sendak. My daughter is named after his character, Ida, in Outside Over There.
That's where the darling Ida got her name! Of course!
I'd love to hear about other babies named for picture book characters.