Atterbury, E. B. The Knox County News (Knox City, Tex.), Vol. 6, No. 22, Ed. 1 Friday, July 1, 1910, newspaper, July 1, 1910; (https://texashistory.unt.edu/ark:/67531/metapth179035/m1/1/: accessed April 23, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .