MLA

Johnson, James Weldon, 1871-1938. Matthews, Brander. Box 13, folder 315. 1908-25. https://collections.library.yale.edu/catalog/15640485.

APA, 6th edition

Johnson, James Weldon, 1871-1938. (["Box 13, folder 315"])(1908-25)[Matthews, Brander]. https://collections.library.yale.edu/catalog/15640485.