MLA

Linton, W. J. (William James), 1812-1897. Scott, William Bell. Box 2, folder 103. 1855, 1870. https://collections.library.yale.edu/catalog/11704706.

APA, 6th edition

Linton, W. J. (William James), 1812-1897. (["Box 2, folder 103"])(1855, 1870)[Scott, William Bell]. https://collections.library.yale.edu/catalog/11704706.