Johnston, W. B. [Postcard from W. B. Johnston to George Pendexter, January 15, 1912], postcard, January 15, 1912; (https://texashistory.unt.edu/ark:/67531/metapth705625/m1/1/: accessed October 18, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .