Abby M. O’Neill

Abby Rockefeller O’Neill was the eldest grandchild of John D. Rockefeller Jr. and Abby Aldrich Rockefeller. She and her husband George O’Neill bought an Oyster Bay Cove, New York home in 1950 and lived there for nearly 70 years, until her death in 2017, at 89, and his in 2019, at 92.