Deborah Hopkinson is the author of many highly acclaimed picture books, including Annie and Helen; A Boy Called Dickens; Sky Boys: How They Built the Empire State Building, a Boston Globe–Horn Book Honor Book; and Abe Lincoln Crosses a Creek: A Tall, Thin Tale, an ALA-ALSC Notable Children’s Book. She lives in Oregon with her family.

Jennifer Zivion worked as a graphic designer and then as a creative director before becoming a professional illustrator. Her artwork has appeared in books, magazines, and an exhibit at the world's largest children's museum. Jennifer lives in Indiana with her husband and two daughters.