MLA

Simpson, Randolph Linsly, 1927-1992. Studio unknown Half-length portrait of Hattie Crush. Cabinet photograph. Box 9, folder 187. 1887 December 15. https://collections.library.yale.edu/catalog/2002239.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 9, folder 187"])(1887 December 15)[Studio unknown Half-length portrait of Hattie Crush. Cabinet photograph]. https://collections.library.yale.edu/catalog/2002239.