Swenson, W. G. [Form letter from W. G. Swenson to Stockholders of Abilene Improvement Co. - March 30, 1948], letter, March 30, 1948; (https://texashistory.unt.edu/ark:/67531/metapth1398345/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .