Hildreth Meière (September 3, 1892-May 2, 1961) was one of the most renowned American muralists of the first half of the 20th century.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Hildreth_Meiere

St. Martin of Tours and a Beggar by Hildreth Meière
c.1940 / Central panel of painted portable triptych / Whereabouts unknown

Hildreth Meière Commissions on IHMA: https://www.hildrethmeiere.org/commissions

Further reading:
https://www.classicist.org/articles/walls-speak-the-narrative-art-of-hildreth-meiere/
https://www.nbm.org/walls-speak-narrative-art-hildreth-meiere/
Behind paywalls:
https://www.nytimes.com/2014/05/02/arts/design/hildreth-meiere-the-forgotten-art-deco-artist.html
https://www.theatlantic.com/entertainment/archive/2014/05/art-decos-nearly-forgotten-quietly-feminist-master/361495/