Klein, Stan. [Fort Croghan, (Northeast oblique of #1/#2 and #3 at rear)], photograph, February 3, 1977; (https://texashistory.unt.edu/ark:/67531/metapth684423/m1/1/: accessed April 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .