The Twice-a-Week Herald. (Amarillo, Tex.), Vol. 21, No. 52, Ed. 1 Friday, June 29, 1906, newspaper, June 29, 1906; (https://texashistory.unt.edu/ark:/67531/metapth281565/m1/5/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .