MLA

Davis, Andrew Jackson, 1826-1910. 1873. Box 1, folder 15. 1848-1929. https://collections.library.yale.edu/catalog/32528633.

APA, 6th edition

Davis, Andrew Jackson, 1826-1910. (["Box 1, folder 15"])(1848-1929)[1873]. https://collections.library.yale.edu/catalog/32528633.