[Letter from Daniel W. Kempner to Eastman Kodak Company, July 11, 1939], letter, July 11, 1939; (https://texashistory.unt.edu/ark:/67531/metapth1328678/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .