Enstrom, William N. [Letter from William N. Enstrom to I. H. Kempner, December 17, 1948], letter, December 17, 1948; (https://texashistory.unt.edu/ark:/67531/metapth1453629/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .