Richard Rockefeller of the United States Advisory Board of Doctors Without Borders from 1989 until 2010, and served on the board of Rockefeller University in New York City until 2006. In the last few years of his life, Rockefeller was working to establish better worldwide methods of treatment for individuals suffering from post-traumatic stress disorder. Rockefeller was the founder and former chairman of Hour Exchange Portland, a service credit barter in Portland and throughout the state of Maine. He also served as chairman of the board of Maine Coast Heritage Trust from 2000 to 2006. Rockefeller served as president of the Rockefeller
Rockefeller family were particularly prominent in this area. The family was honored for its conservation efforts in November 2005, by the National Audubon Society, one of America's largest and oldest conservation organizations, at which over 30 family members attended. At the event, the society's president, John Flicker, notably stated: "Cumulatively, no other family in America has made the contribution to conservation that the Rockefeller family has made". In 2016 fifth-generation descendants of John Sr. criticized ExxonMobil, one of the successors to his company Standard Oil, for their record on climate change. The Rockefeller Brothers Fund and the Rockefeller Family Fund both backed