Loren MacIver (February 2, 1909-March 3, 1998) was an American painter and the first woman represented in MoMA’s permanent collection.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Loren_MacIver
Downstairs by Loren MacIver
c.1936-1939 / Oil on canvas / 30 1⁄4″x20 1⁄8″ / Smithsonian American Art Museum, DC
Loren MacIver on Artnet: http://www.artnet.com/artists/loren-maciver/