Elizabeth Shippen Green (September 1, 1871-May 29, 1954) was an American illustrator. She studied with Howard Pyle at Drexel where she met Violet Oakley and Jessie Willcox Smith; Pyle nicknamed them The Red Rose Girls.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Elizabeth_Shippen_Green
The Library by Elizabeth Shippen Green
1905 / Watercolor, oil, and charcoal on illustration board / 27-3/8″x16-3/8″ / Delaware Art Museum, Wilmington, DE
Elizabeth Shippen Green on Artnet: http://www.artnet.com/artists/elizabeth-shippen-green/