Whittenberg, Pharis. [Postcard from Pharis Whittenberg to Annie Sharpe, August 17, 1908], postcard, August 17, 1908; (https://texashistory.unt.edu/ark:/67531/metapth426928/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .