Margaret Rockefeller; Farmland, Coastline Conservationist

Margaret McGrath Rockefeller, 80, a conservationist who worked for preservation of farmlands and the Maine coast. The wife of David Rockefeller, she was a founding board member of the American Farmland Trust, a national land preservation group, and founder of the Maine Coast Heritage Trust, which has conserved about 66,000 acres in that state. A New York native at ease at state dinners, she also loved roaming her farms on a tractor. She enjoyed raising cattle and maintained working farms at her homes in Tarrytown and Livingston in New York and on Bartlett Island, Maine. She was also a trustee of the New York Philharmonic and served for many years on the board of the New York Botanical Garden, which named a rose garden for her in the Bronx. On Tuesday in New York of complications from heart surgery.