[Portrait of an Unknown Couple], photograph, 1878/1909; (https://texashistory.unt.edu/ark:/67531/metapth128925/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
[Portrait of an Unknown Couple], photograph, 1878/1909; (https://texashistory.unt.edu/ark:/67531/metapth128925/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .