Curtis, W. T. The Carbon News (Carbon, Tex.), Vol. 7, No. 37, Ed. 1 Thursday, May 14, 1908, newspaper, May 14, 1908; (https://texashistory.unt.edu/ark:/67531/metapth521170/m1/1/: accessed April 19, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .