Oslo Posten. (Guymon, Okla.), Vol. 3, No. 2, Ed. 1 Monday, January 15, 1912, newspaper, January 15, 1912; (https://texashistory.unt.edu/ark:/67531/metapth636031/m1/1/: accessed June 2, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .