Kempner, Isaac H. (Isaac Herbert), 1873-1967. [Letter from Isaac H. Kempner to Henry Hutchings, Jr., July 1, 1949], letter, July 1, 1949; (https://texashistory.unt.edu/ark:/67531/metapth1476462/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .