Davis, Roy B. [Letter from Roy B. Davis to Harris L. Kempner, December 9, 1968], letter, December 9, 1968; (https://texashistory.unt.edu/ark:/67531/metapth1421877/m1/1/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .