The following publication contains information about John Steinker:
Article: "Haunted by history: Tragedy followed Bighorn battle survivors" by Lorna Thackeray • Billings Gazette • June 21, 2009 • Pages E1 and E3.
Article: "Farriers Serving in the 7th U.S. Cavalry, 25 June 1876" by Peter Russell • MenWithCuster.com • Accessed December 17, 2025.
