MLA

Lockwood, Samuel, 1803-1893. Commissions. Box 2, folder 19. 1829. https://collections.library.yale.edu/catalog/32529418.

APA, 6th edition

Lockwood, Samuel, 1803-1893. (["Box 2, folder 19"])(1829)[Commissions]. https://collections.library.yale.edu/catalog/32529418.