Question: Author David Chanoff has collaborated with a U.S. Navy admiral who served as the ambassador to the United Kingdom under which President?

Hispanic Admirals in the United States Navy can trace their tradition of naval military service to the Hispanic sailors, who have served in the Navy during every war and conflict since the American Revolution.  Prior to the Civil War, the highest rank reached by a Hispanic-American in the U.S. Navy was Commodore.  Such was the case of Commodore Uriah Phillips Levy (1792–1862), a Sephardic Jew of Hispanic descent and great grandson of Dr. Samuel Nunez, who served in the War of 1812.  During the American Civil War, the government of the United States recognized that the rapid expanding Navy was in need of admirals therefore, Congress proceeded to authorize the appointment of nine officers the rank of rear admiral.  On July 16, 1862, Flag Officer David Glasgow Farragut became the first Hispanic-American to be appointed to the rank of rear admiral.  Two years later (1864), Farragut became a vice admiral, and in 1866 the Navy's first full admiral.  During World War I, Robert Lopez, the first Hispanic graduate of the United States Naval Academy, served with the rank of commodore in command of the Mare Island Naval Shipyard, and during World War II five Hispanics served with the ranks of rear admiral or above in either the European or Pacific Theater's of the war.  As of April 2007, twenty-two Hispanic-Americans have reached the rank of admiral, and of this number thirteen were graduates of the USNA. <SEP> Luke McNamee (April 4, 1871 – December 30, 1952) was a United States Navy Admiral, businessman, and the 10th and 12th Naval Governor of Guam.  He served in the Navy for 42 years, during which time he held multiple commands.  During the Spanish–American War, he earned the Navy Cross, and later the Legion of Honour.  Earlier on his career, he served as governor, and expanded funding for fighting the infectious diseases running through the native population.  He represented the U.S. Navy as a delegate to the Paris Peace Conference in 1919.  He later became Director of the Office of Naval Intelligence.  He was promoted to full admiral after being placed in charge of the Battle Fleet.  After this command, he served as President of the Naval War College before retiring in 1934.  After leaving the Navy, he became President and Chairman of the Mackay Radio and Telegraph Company, where he aggressively expanded telegraph and radio service overseas. <SEP>  His work has typically involved collaborations with the principal protagonist of the work concerned.  His collaborators have included; Augustus A. White, Joycelyn Elders, Đoàn Văn Toại, William J. Crowe, Ariel Sharon and Kenneth Good. David Chanoff is a noted author of non-fiction work.  He has also written about a wide range of subjects including literary history, education and foreign for the Washington Post, and The New Republic and the New York Times Magazine.  He has more than twelve books. <SEP> William James Crowe Jr. (January 2, 1925October 18, 2007) was a United States Navy admiral who served as Chairman of the Joint Chiefs of Staff under Presidents Ronald Reagan and George H. W. Bush, and as the ambassador to the United Kingdom under President Bill Clinton.