Cite

Photograph: Stevens, Ebenezer [Great grandfather]

MLA

Wharton, Edith, 1862-1937. Photograph: Stevens, Ebenezer [Great grandfather]. folder 1844 (broadside). n.d.. https://collections.library.yale.edu/catalog/10081350.

APA, 6th edition

Wharton, Edith, 1862-1937. (["folder 1844 (broadside)"])(n.d.)[Photograph: Stevens, Ebenezer [Great grandfather]]. https://collections.library.yale.edu/catalog/10081350.