The following publications contain information about Edward Botzer:

Article: "Edward Botzer: Was He Custer's Last Trooper?" by Sandy Barnard • Scientists and historical experts believe a new photo may help identify the skull of a 7th Cavalryman whose remains were found in 1989 at the Reno Retreat Crossing. • Greasy Grass, Journal of the Custer Battlefield Historical & Museum Association • Vol. 11 • May 1995.

Article: "Looking Back" by Ron Nichols • Greasy Grass, Journal of the Custer Battlefield Historical & Museum Association  • Vol. 25  • May 2009.