MLA

Hawthorne, Nathaniel, 1804-1864. Unidentified. Box 2, folder 41. 1851. https://collections.library.yale.edu/catalog/2064556.

APA, 6th edition

Hawthorne, Nathaniel, 1804-1864. (["Box 2, folder 41"])(1851)[Unidentified]. https://collections.library.yale.edu/catalog/2064556.