The Humble Refinery Bee (Houston, Tex.), Vol. 02, No. 09, Ed. 1 Thursday, April 23, 1936, periodical, April 23, 1936; (https://texashistory.unt.edu/ark:/67531/metapth1481982/m1/1/: accessed June 26, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .