Science Advisor to the President Science Advisor to the President The Science Advisor to the President is an individual charged with providing advisory opinions and analysis on science and technology matters to the President of the United States. The first Science Advisor, Vannevar Bush, chairman of the Office of Scientific Research and Development, served Presidents Franklin Delano Roosevelt and Harry S. Truman from 1941 to 1951. President Truman created the President's Science Advisory Committee in 1951, establishing the chairman of this committee as the President's Science Advisor. This committee continued under Presidents Dwight D. Eisenhower, John F. Kennedy, Lyndon B. Johnson, and Richard M. Nixon
Secretary-General to the President Secretary-General to the President The Secretary-General to the President is the senior Irish civil servant who fulfils four distinct roles in relation to the office of the President of Ireland. The current incumbent is Art O'Leary who was appointed in June 2014. The Office was established by the "Presidential Establishment Act, 1938". Under this Act, and subsequent legislation, the Secretary General is: The Secretary General's signature is essential for the authentication of the Presidential Seal when affixed to a document executed by the Commission under Seal. Under the "Presidential Elections (Amendment) Act, 1946" the Secretary General to the President is