Louise FatioLouise Fatio was the author of several books, including the Happy Lion books, all illustrated by her artist husband, Roger Duvoisin. She was born in 1904 in Switzerland and died in 1993 in New Jersey.
Roger Duvoisin wrote and illustrated forty books, including those about Petunia the silly goose and Veronica the hippopotamus, and illustrated over a hundred more by other authors, many with his wife, Louise. He received the Caldecott Medal in 1947 for White Snow, Bright Snow and a Caldecott Honor in 1966 for Hide and Seek Fog, both written by Alvin Tresselt. Roger Duvoisin died in 1980.