Biography from Covington Fine Arts Gallery, Inc.
It appears that she traveled somewhat as she did live in Riverside, California for a while and apparently moved to Manhattan after her father’s death in 1874.
Records show that Ms. Eastman and her sister were in Monhegan, Maine in September of 1925. She died on March 17, 1931.
The 1880 – 1900 – 1920 – 1930 United States Federal Census Record
The guest register at the Island Inn (A Monhegan Hotel) from 1923 –
Ancestory.com provided some information on the descendants of Sanford Eastman, of which Grace was listed.