David Rockefeller
Cause: Art and conservation. Carrying on a family tradition of generosity, Rockefeller pledged $100 million each to the Museum of Modern Art and Rockefeller University, both in New York City. He has also funded many conservation projects.
Impact: The Rockefeller family has supported the Museum of Modern Art since its inception. The recent gift to Rockefeller University, the largest in the school's history, is aimed primarily at scientific research.