Helen Hardin (May 28, 1943-June 9, 1984) was a painter and printmaker whose work featured abstracted Native American iconography. Her mother was painter Pablita Velarde (1918-2006) and her daughter was the artist Margarete Bagshaw (1964-2015).
Biography on Wikipedia: https://en.wikipedia.org/wiki/Helen_Hardin

Medicine Woman by Helen Hardin
c.1981 / 4-color copper plate lithograph / 24″x18″ / Various private collections

Helen Hardin on Artnet: http://www.artnet.com/artists/helen-hardin/

Further reading:
https://taospainters.com/helen-hardin/
https://folkart.org/mag/in-the-spirit-of-tradition
https://www.crockerart.org/oculus/spirit-lines-helen-hardin-etchings