The Alpine Avalanche (Alpine, Tex.), Vol. 31, No. 19, Ed. 1 Thursday, May 12, 1921, newspaper, May 12, 1921; (https://texashistory.unt.edu/ark:/67531/metapth1708525/m1/3/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .