Caldecott-medalist Margaret Crosby "Peggy" Rathmann was born in St. Paul, Minnesota, and grew up in the suburbs with two brothers and two sisters. Ms. Rathmann studied commercial art at the American Academy in Chicago, fine art at the Atelier Lack in Minneapolis, and children's-book writing and illustration at the Otis Parsons School of Design in Los Angeles. She currently lives and works in Nicasio, CA on a ranch she shares with her husband, John Wick, and a very funny bunch of birds.