MLA

Simpson, Randolph Linsly, 1927-1992. Norman, Natchez, MS Full length portrait; young man in frogged band uniform holding cornet; kepi with "SCR" in wreath; elaborate fireplace set. Imperial Cabinet photograph. Box 10, folder 307. circa 1890. https://collections.library.yale.edu/catalog/2002337.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 10, folder 307"])(circa 1890)[Norman, Natchez, MS Full length portrait; young man in frogged band uniform holding cornet; kepi with "SCR" in wreath; elaborate fireplace set. Imperial Cabinet photograph]. https://collections.library.yale.edu/catalog/2002337.