MLA

Johnson, James Weldon, 1871-1938. Johnsons with Rosamond and Nora Johnson, Great Barrington, Massachusetts. Box 110, folder 971. circa 1930-1936. https://collections.library.yale.edu/catalog/2042833.

APA, 6th edition

Johnson, James Weldon, 1871-1938. (["Box 110, folder 971"])(circa 1930-1936)[Johnsons with Rosamond and Nora Johnson, Great Barrington, Massachusetts]. https://collections.library.yale.edu/catalog/2042833.