The Houston Labor Journal (Houston, Tex.), Vol. 29, No. 26, Ed. 1 Friday, April 12, 1957, newspaper, April 12, 1957; (https://texashistory.unt.edu/ark:/67531/metapth1552033/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .