[Letter from Daniel W. Kempner to Straus-Frank Company, September 9, 1949], letter, September 9, 1949; (https://texashistory.unt.edu/ark:/67531/metapth1342002/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .