[Report by Lieutenant of Police E. L. Cunningham to Chief of Police J. E. Curry, December 3, 1963 #4], legal document, December 3, 1963; (https://texashistory.unt.edu/ark:/67531/metapth340166/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .