Kempner, Harris Leon. [Letter from Harris Leon Kempner to Stanley Marcus, February 18, 1970], letter, February 18, 1970; (https://texashistory.unt.edu/ark:/67531/metapth1421684/m1/1/: accessed July 13, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .