Mary Jane Peale (February 16, 1827-November 22, 1902) was an American painter, and among the last members of the Peale family to paint professionally.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Mary_Jane_Peale
Rubens Peale, Aged 71 by Mary Jane Peale
1855 / Oil on canvas / 30″x25″ / Philadelphia Museum of Art, PA
Mary Jane Peale on Artnet: http://www.artnet.com/artists/mary-jane-peale/