Elizabeth Olds (December 10, 1896-March 4, 1991) was an American artist known for her work in developing silkscreen as a fine arts medium. She was also a painter, illustrator, and author of children’s books.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Elizabeth_Olds

Me and Her by Elizabeth Olds
c.1940-1970 / Screenprint on paper / 17″x13″ / Smithsonian American Art Museum, DC

Elizabeth Olds on Artnet: http://www.artnet.com/artists/elizabeth-olds/

Further reading:
https://www.gf.org/fellows/all-fellows/elizabeth-olds/
https://www.annexgalleries.com/artists/biography/1781/Olds/Elizabeth
http://thefancifullobster.blogspot.com/2018/01/printmakers-you-should-know-elizabeth.html