https://en.wikipedia.org/wiki/Boone_Helm

https://www.legendsofamerica.com/we-boonehelm/

Levi Boone Helm – Murderer, Cannibal & Thief

By Emerson Hough, 1907.

https://www.barkerville.com/vol10/boonehelm.html

Kentucky Cannibal In Cariboo

A Story of the Killer Boone Helm

https://fox56news.com/news/kentucky/chronicling-the-kent ...