Barbara Hepworth (January 10, 1903-May 20, 1975) was an English artist and sculptor.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Barbara_Hepworth

Hollow Form (Penwith) by Barbara Hepworth / 1955-56
Lagos wood, partly painted / 35 3/8″x35 7/8″x25 5/8″ / MoMA, NY, NY

The Hepworth Wakefield Museum: https://hepworthwakefield.org/artist/barbara-hepworth/

Further reading:
https://nmwa.org/art/artists/barbara-hepworth/
https://www.tate.org.uk/art/artists/dame-barbara-hepworth-1274
https://schristywolfe.com/2016/01/10/barbara-hepworth-born-january-10-1903-2/