MLA

Simpson, Randolph Linsly, 1927-1992. W.G. & A.J. Thuss, Nashville, TN Bust portrait of "Old Uncle Alfred," elderly man, seated, facing left, in stripped shirt and suit. Cabinet photograph. Box 9, folder 262. circa 1875. https://collections.library.yale.edu/catalog/2002314.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 9, folder 262"])(circa 1875)[W.G. & A.J. Thuss, Nashville, TN Bust portrait of "Old Uncle Alfred," elderly man, seated, facing left, in stripped shirt and suit. Cabinet photograph]. https://collections.library.yale.edu/catalog/2002314.