[Opp Ranch House, (Southwest)], photograph, November 1978; (https://texashistory.unt.edu/ark:/67531/metapth668329/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
[Opp Ranch House, (Southwest)], photograph, November 1978; (https://texashistory.unt.edu/ark:/67531/metapth668329/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .