[Promissory Note from Jesse Aquilar to John J. Herrera - 1971-07-23], legal document, July 23, 1971; (https://texashistory.unt.edu/ark:/67531/metapth249761/m1/1/: accessed June 12, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .