The following publication contains information about William Morris:

Article: "Reno's Battalion in the Battle of the Little Bighorn" edited by Neil C. Mangum • Relive the experiences of the battle through the eyes of Private William Morris. • Greasy Grass, Annual of the Custer Battlefield Historical & Museum Association • Vol. 2 • May 1986.

Article: "Haunted by history: Tragedy followed Bighorn battle survivors" by Lorna Thackeray • Billings Gazette • June 21, 2009 • Pages E1 and E3.