"Benjamin Franklin and his Circle," The Metropolitan Museum of Art, 1936
"Benjamin Franklin: In Search of a Better World," Benjamin Franklin Tercentenary traveling exhibition, 2005-2008

Hewson, Mary (Polly) Stevenson
Stevenson, Margaret

Benjamin Franklin and his Circle: A Catalogue of an Exhibition (New York: Metropolitan Museum of Art, 1936) (notes by R.T.H. Halsey, Joseph Downs, and Marshall Davidson)

Lopez, Claude-Anne, and Eugenia W. Herbert,The Private Franklin : The Man and His Family ( New York : W.W. Norton & Company, Inc., 1975) Illustrated among the plates following page 140.

Talbott, Page, ed., Benjamin Franklin: In Search of a Better World (New Haven and London: Yale University, 2005) (companion book to exhibition of same title)

The portrait is not mentioned specifically in Polly Hewson's will. There is no reference to any paintings or works of art. The furniture of her chamber and of her daughter's chamber she leaves to her daughter; the rest of the furniture she leaves to her son, William.

This portrait was owned recently by Joan Bradford Wiederseim, daughter of William(?) Bradford. It is possible that the portrait came to William Bradford from Elizabeth Nevins Bradford, his sister.