Abigail May Alcott Nieriker (July 26, 1840-December 29, 1879) was an American artist. She was the youngest sister of Louisa May Alcott and the basis for the character Amy in Little Women.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Abigail_May_Alcott_Nieriker
May Alcott Nieriker, Still life with Owl by May Alcott Nieriker
1879 / Orchard House, Concord, MA / Image from Daily Art Magazine
Studying Art Abroad, and How to Do it Cheaply by May Alcott Nieriker: