Sally M WalkerSally M. Walker is the author of the Sibert Medal winner Secrets of a Civil War Submarine as well as many other nonfiction books, including Boundaries: How the Mason-Dixon Line Settled a Family Feud and Divided a Nation, Written in Bone: Buried Livesof Jamestown and Colonial Maryland and Blizzard of Glass: The Halifax Explosion of 1917. She also adapted Tim Flannery's The Weather Makers for a younger audience as We Are the Weather Makers. About Sinking the Sultana, she says, "I first learned about Andersonville Prison Camp when I was in junior high school and read MacKinlay Kantor's novel Andersonville. Years later, I read a number of nonfiction books about Civil War prison camps, including diaries written by former prisoners. At the end of Michael Dougherty's diary, he mentions the Sultana disaster. This heart-breaking tragedy--which could have been avoided--has long been a story that I wanted to tell." Sally M. Walker lives in Illinois. Read More Read Less