Kempner, Isaac H. (Isaac Herbert), 1873-1967. [Letter from I. H. Kempner to Hugh Williams, June 11, 1953], letter, June 11, 1953; (https://texashistory.unt.edu/ark:/67531/metapth1092762/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .