[Letter from I. H. Kempner to Radio Station KXYZ, September 19, 1944], letter, September 19, 1944; (https://texashistory.unt.edu/ark:/67531/metapth1451864/m1/1/: accessed July 6, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .