[Photostatic copy of the original Index to Unfinished Business in Zavala's Colony, September 1, 1932], book, September 1, 1932; (https://texashistory.unt.edu/ark:/67531/metapth5888/m1/1/: accessed April 30, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .