Sitting Bull, leader
c. 1831-Dec. 15, 1890
A Boy Called Slow by Joseph Bruchac, illustrated by Rocco Baviera (Putnam, 1998)
From "Slow" to "Sitting Bull," this moving account of the greatest Lakota Sioux warrior's 1830s childhood shows how he grew into his new name.
The PBS site on New Perspectives on the West offers a biography of Sitting Bull with a number of links.