The Alpine Avalanche. (Alpine, Tex.), Vol. 20, No. 17, Ed. 1 Thursday, April 21, 1910, newspaper, April 21, 1910; (https://texashistory.unt.edu/ark:/67531/metapth1568447/m1/1/: accessed June 30, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .