He was a major force behind the establishment of the Council on Foundations, the Foundation Center, and Independent Sector.
World Trade Center | center | National Science Foundation | Ford Foundation | Rockefeller Foundation | Kennedy Space Center | Walker Art Center | Woodrow Wilson International Center for Scholars | Marshall Space Flight Center | John Simon Guggenheim Memorial Foundation | Rockefeller Center | Lyndon B. Johnson Space Center | Goddard Space Flight Center | Electronic Frontier Foundation | Bill & Melinda Gates Foundation | Georgia World Congress Center | Staples Center | New York Foundation for the Arts | Lincoln Center for the Performing Arts | Tanglewood Music Center | National Center for Biotechnology Information | Mozilla Foundation | Guggenheim Foundation | John F. Kennedy Center for the Performing Arts | Alexander von Humboldt Foundation | Center for Constitutional Rights | Andrew W. Mellon Foundation | Wikimedia Foundation | Georgetown University Law Center | Art Center College of Design |
Additionally, requests may be made via the IRS using Form 4506-A, and PDF copies can often be found online on sites such as Foundation Center's 990 Finder, Guidestar.org and the National Center for Charitable Statistics.