[Letter from Jeffrey to John, October 21, letter from Kelly Spangler to John Thomas, October 12, 1989, salaries form], text, October 12, 1989; (https://texashistory.unt.edu/ark:/67531/metadc1823395/m1/4/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .