MLA

Johnson, James Weldon, 1871-1938. Johnsons, John B. Nail, John E. Nail, Grayce Fairfax Nail, Brenda Moryck, Bertha Randolph, Clara Wood, Great Barrington, Massachusetts. Box 109, folder 959. 1928. https://collections.library.yale.edu/catalog/15814938.

APA, 6th edition

Johnson, James Weldon, 1871-1938. (["Box 109, folder 959"])(1928)[Johnsons, John B. Nail, John E. Nail, Grayce Fairfax Nail, Brenda Moryck, Bertha Randolph, Clara Wood, Great Barrington, Massachusetts]. https://collections.library.yale.edu/catalog/15814938.