[Letter from Daniel W. Kempner to Henry B. Stemzel, February 4, 1948], letter, February 4, 1948; (https://texashistory.unt.edu/ark:/67531/metapth1340439/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .