Ellis, O. B. [Transcript of recorded conversation between O. B. Ellis and Abraham Rios - 1955-07-05], legal document, July 5, 1955; (https://texashistory.unt.edu/ark:/67531/metapth249485/m1/1/: accessed July 4, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .