John Davison Rockefeller III (March 21, 1906 – July 10, 1978) was a philanthropist and third-generation member of the prominent Rockefeller family. He was the eldest son of philanthropists John D. Rockefeller Jr. and Abby Aldrich Rockefeller. His siblings were Abby, Nelson, Laurance, Winthrop and David. He was instrumental in setting up the Board of Trustees, the Foundation Center and the independent sector. He is the father of John Davison “Jay” Rockefeller IV – a former US Senator from West Virginia and a former dual-term governor of that state.