Stone, Harry N. The Seminole Sentinel (Seminole, Tex.), Vol. 15, No. 11, Ed. 1 Thursday, June 2, 1921, newspaper, June 2, 1921; (https://texashistory.unt.edu/ark:/67531/metapth577952/m1/1/: accessed November 18, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .