MLA

Simpson, Randolph Linsly, 1927-1992. J. Jeanes, Chester, PA Full length double portrait; young white girl in apron standing beside black man seated; in set of log cabin with giant American flag behind. Cabinet photograph.. Box 9, folder 177. circa 1885. https://collections.library.yale.edu/catalog/2002229.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 9, folder 177"])(circa 1885)[J. Jeanes, Chester, PA Full length double portrait; young white girl in apron standing beside black man seated; in set of log cabin with giant American flag behind. Cabinet photograph.]. https://collections.library.yale.edu/catalog/2002229.