Advisory Committee on Antarctic Names | International Olympic Committee | Committee of Public Safety | UK Antarctic Place-Names Committee | Republican National Committee | Central Committee | Democratic National Committee | House Un-American Activities Committee | International Committee of the Red Cross | United States Senate Committee on the Judiciary | United States House Committee on Ways and Means | United States Olympic Committee | American Jewish Committee | United States House Committee on the Judiciary | United States Senate Committee on Appropriations | United Nations Interim Administration Mission in Kosovo | Judicial Committee of the Privy Council | International Paralympic Committee | Central Committee of the Communist Party of the Soviet Union | United States House Committee on Appropriations | Italian National Olympic Committee | Committee to Protect Journalists | International Rescue Committee | United States Senate Committee on Foreign Relations | United States House Committee on Oversight and Government Reform | United States House Committee on Foreign Affairs | United States House Committee on Energy and Commerce | Committee of General Security | Committee on Public Lands | Committee of Union and Progress |
He was a member of the Interim Committee appointed to advise Secretary of War Henry L. Stimson and President Harry S. Truman on problems expected to arise from the development of the atomic bomb and he was an economic advisor to Truman at the Potsdam Conference.
He worked as a staff member in the Texas House of Representatives, serving as committee clerk and legislative director for State Representative Rene Oliveira, and then committee clerk for Senator Eddie Bernice Johnson, working to support the Interim Committee on Minority and Women Business Ownership Opportunities.