Mary Agnes Yerkes (August 9, 1886-November 8, 1989) was an American Impressionist painter, photographer, and artisan.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Mary_Agnes_Yerkes

Blue Boat by Mary Agnes Yerkes
c.1920 / Oil on canvas / Dimensions? / Private collection

Mary Agnes Yerkes on MutualArt:
https://www.mutualart.com/Artist/Mary-Agnes-Yerkes/CD81399B02DFD408/Artworks

Further reading:
https://oprfmuseum.org/people/mary-agnes-yerkes
http://illinoiswomenartists.org/mary-agnes-yerkes/
https://webkiosk.springville.org/artist-maker/info/823