Stamps Quartet News (Dallas, Tex.), Vol. 16, No. 2, Ed. 1 Wednesday, February 1, 1961, periodical, February 1, 1961; (https://texashistory.unt.edu/ark:/67531/metapth785612/m1/1/: accessed June 11, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .