The Shamrock Texan (Shamrock, Tex.), Ed. 1 Thursday, March 21, 1957, newspaper, March 21, 1957; (https://texashistory.unt.edu/ark:/67531/metapth529724/m1/3/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .