The White House Transportation Agency (WHTA) provides motor vehicle transportation to the White House as directed by the White House Military Office.
 This includes 24/7 ground transportation for the President's family, the White House staff, official visitors of the First Family and other authorized personnel.
 Members of the WHTA perform all duties associated with transportation, including driving armored cars, preparing Air Force One for take-off, and driving in the presidential motorcade.
 Staff of the agency are all noncommissioned officers of the United States Army.
The Physician to the President (also known colloquially as the White House doctor) is the formal and official title of the physician who is director of the White House Medical Unit, a unit of the White House Military Office responsible for the medical needs of the President of the United States, Vice President, White House staff, and visitors.
 The Physician to the President is also the Chief White House Physician.
Richard Greenleaf Trefry (born August 6, 1924) is a retired lieutenant general in the United States Army.
 He last assignment was Inspector General of the Army.
 In 1990, he was appointed as Military Assistant to the President and Director of the White House Military Office.
 In 1995, Trefry served on the Board of Directors of American Military University and currently serves on the Board of Trustees of the American Public University System as a member and committee chair.
Rear Admiral (UH) Raymond A. Spicer, United States Navy (born c. 1957) is the former director of the White House Military Office and Deputy Assistant to the President.
 RADM Spicer reported as Deputy Assistant to the President and Director, White House Military Office in March 2007, and was succeeded by Louis Caldera in January 2009.
Jonathan W. Bailey is a retired rear admiral in the National Oceanic and Atmospheric Administration Commissioned Corps and a former Director, NOAA Commissioned Officer Corps and Director, NOAA Office of Marine and Aviation Operations.
 He was appointed by Secretary of Commerce Carlos M. Gutierrez on October 1, 2007, after nomination for the position by President George W. Bush, confirmation by the U.S. Senate, and subsequent promotion by the Secretary to the two-star rank of rear admiral.
 On August 15, 2012, Admiral Bailey was succeeded as Director, NOAA Corps by Rear Admiral Michael S. Devany, and formally retired on September 30, 2012.
David Folk Baucom (born 7 March 1959) is a retired United States Navy Rear Admiral.
 Among Baucom’s military roles were White House military aide to the president, director of the US Central Command Deployment and Distribution Operations Center in Kuwait, commander of Defense Logistics Agency Troop Support, commander of Fleet & Industrial Supply Center in Norfolk, Virginia, and strategy and policy director of the US Transportation Command.
 Baucom is currently senior director at Vintun LLC.
Rear Admiral Stephen W. Rochon is the former Director of the Executive Residence and White House Chief Usher.
 He was the first African-American White House Chief Usher.
 Admiral Rochon served his last day on active duty with the Coast Guard on March 9, 2007, and began his service at the White House on March 12.
 Admiral Rochon succeeded Gary J. Walters, who retired in January 2007 after 20 years as White House Chief Usher.
 He resigned as Chief Usher in 2011 to work in the United States Department of Homeland Security and was replaced as Chief Usher by Angella Reid on October 5, 2011.
Michael Harold "Mike" Miller (born c. 1952) is a former vice admiral in the United States Navy, and was the first active-duty officer to direct the White House Military Office.
 He was the 61st Superintendent of the United States Naval Academy.
Louis Caldera (born April 1, 1956) is an American politician and member of the Democratic Party who served as the Director of the White House Military Office from January to May 2009, as the 17th United States Secretary of the Army from July 1998 to January 2001 and as a California State Assemblyman from January 1992 to January 1997.
The White House Service Badge was a short lived military insignia which was issued between the years of 1960 and 1964 for United States armed forces military personnel stationed at the White House in a variety of duties.
 Issued to any member of the Armed Forces detailed to duty in the White House, other than the Presidential Aides.
 The badge was worn as a part of the uniform of those individuals, during the period of their detail to White House duty, under such regulations as the Secretaries of the Army, Navy, and Air Force, with the approval of the Secretary of Defense.
 It was not a permanent award.
 A corresponding White House Service Certificate was awarded in the name of the President of the United States by the Secretary of the Army, the Secretary of the Navy, or the Secretary of the Air Force, upon recommendation of the Presidential Military, Naval, or Air Force Aide.
 The Certificate could be granted posthumously.

Question: Rear Admiral (UH) Raymond A. Spicer, United States Navy, is the former director of the White House Military Office and reported as Deputy Assistant to the President and Director, White House Military Office in March 2007, and was succeeded by which American politician and member of the Democratic Party who served as the Director of the White House Military Office from January to May 2009, as the 17th United States Secretary of the Army?
Answer: Louis Caldera