The National Co-operator and Texas Farm Journal. (Fort Worth, Tex.), Vol. 30, No. 23, Ed. 1 Wednesday, April 7, 1909, newspaper, April 7, 1909; (https://texashistory.unt.edu/ark:/67531/metapth1636876/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .