Sally M. Walker is the author of the ALA Notable Blizzard of Glass: The Halifax Explosion of 1917. She is also the author of Written in Bone, Fossil Fish Found Alive, and Secrets of a Civil War Submarine, which was awarded a Sibert Medal. She lives in Illinois.
Jonathan D. Voss was a portrait artist and graphic designer before becoming a children's book illustrator. He lives in North Carolina with his family. Winnie is his first book.