Elaine Marie Catherine de Kooning (March 12, 1918-February 1, 1989) was an Abstract Expressionist and Figurative Expressionist painter.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Elaine_de_Kooning

Seated Man by Elaine de Kooning
c.1950-1952 / Oil on paper / 36 1/8″x24 1/8″ / The Johnson Collection, Spartanburg, SC

Elaine de Kooning on Artnet: http://www.artnet.com/artists/elaine-de-kooning/

Further reading:
https://nmwa.org/art/artists/elaine-de-kooning/
https://www.blackmountaincollege.org/elaine-and-willem-de-kooning-the-summer-of-1948/
https://www.danspapers.com/2020/09/artists-residence-history-elaine-de-kooning-house/