What did Grandma Moses do?

Answer 1

Grandma Moses was a renowned American folk artist. She is most often cited as an example of an individual successfully beginning a career in the arts at an advanced age.

Sooo....basically, she was a painter !

Answer 2

Anna Mary Robertson Moses aka "Grandma Moses" is a notable example of primitivism. Two of her most famous works include "Fourth of July" (Which currently hangs in the White House.) and "The Old Checkered House" which was recently apraised for $60,000.