Abilene Landmen's Association. [Telegram from Members of the Abilene Landmen's Association, April 5, 1961], letter, April 5, 1961; (https://texashistory.unt.edu/ark:/67531/metapth1273672/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .