[Letter from Isaac Herbert Kempner to David C. Leavell, January 30, 1951], letter, January 30, 1951; (https://texashistory.unt.edu/ark:/67531/metapth1501866/m1/1/: accessed June 29, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .