[Letter from Daniel W. Kempner to American Florist Supply Co., May 11, 1950], letter, May 11, 1950; (https://texashistory.unt.edu/ark:/67531/metapth1349892/m1/1/: accessed July 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .