Gretchen Woelfle is the author of multiple award-winning fiction and nonfiction books for young readers. Her books include 
Answering the Cry for Freedom, 
Mumbet's Declaration of Independence, and 
Write On, Mercy!,  both of which received the California Reading Association's Eureka! Silver Award, among many other honors. 
John O'Brien has illustrated over 100 books for children. His titles include 
Revolutionary Rogues: John André and Benedict Arnold by Selene Castrovilla and 
Thomas Jefferson Builds a Library by Barb Rosenstock. John is also a cartoonist for many magazines and newspapers, most notably 
The New Yorker, 
New York Times, and 
Esquire.