Science Advisor to the President War II by President Franklin Delano Roosevelt. Vannevar Bush chaired this office through Roosevelt's death in 1945, and continued under Roosevelt's successor Harry S. Truman until 1951. After the war, President Harry S. Truman replaced the OSRD with the Science Advisory Committee in 1951. The office was moved to the White House on November 21, 1957, by President Dwight D. Eisenhower to provide advice and recommendation in response to the Space Race started by the USSR's launch of the first artificial Earth satellite, Sputnik 1. President Richard M. Nixon eliminated the PSAC in 1973, rather than appointing a replacement for
Secretary to the President of the United States Secretary to the President of the United States The Secretary to the President (sometimes dubbed the president's Private Secretary or Personal Secretary) was a former 19th and early 20th century White House position that carried out all the tasks now spread throughout the modern White House Office. The Secretary would act as a buffer between the President and the public, keeping the President's schedules and appointments, managing his correspondence, managing the staff, communicating to the press as well as being a close aide and advisor to the President in a manner that often required great skill and discretion. In terms