Margaret Rockefeller

[3] Throughout her life she was a board member of many organizations and raised funds for conservation projects across the United States of America.

[6] During the 1970s, Margaret started to raise cattle on land close to Rockefeller summer home at Seal Harbor, Bartlett Island in Maine and then at the couple's home in Tarrytown, N.Y. She became a breeder of Simmental cattle, purchasing four farms in western Columbia County, N.Y. in the 1980s,[7] including The Hermitage, a Livingston family estate which she had torn down in 1983.

[8] Margaret Rockefeller was the sole founder of the Maine Coast Heritage Trust and was its chair for a number of years.

[9] The Trust has conserved around 66,000 acres and many buildings in Maine and works towards keeping wildlife habitats, establishing public access to the coast, and providing educational support.

[10] One of the trust's projects is dedicated to the memory of Margaret Rockefeller, the Stone Barns Center, which displays a plaque commemorating her commitment to farmland preservation.