Kempner, Isaac H. (Isaac Herbert), 1873-1967. [Letter from Isaac H. Kempner to Mrs. Henry Freiberg, January 18, 1958], letter, January 18, 1958; (https://texashistory.unt.edu/ark:/67531/metapth1514706/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .