The President of the United States (informally referred to as "POTUS") is the head of state and head of government of the United States.
 The president directs the executive branch of the federal government and is the commander-in-chief of the United States Armed Forces.
Harold Ernest Goettler (July 21, 1890 – October 6, 1918) was a U.S. Army Air Service aviator killed in action on October 6, 1918 while locating the Lost Battalion of the 77th Division during World War I.
 He died of wounds resulting from German fire from the ground during the flight.
 For his actions, he posthumously received the Medal of Honor.
 He attended the University of Chicago, and the Harold E. Goettler Political Institutions Prize awarded to University of Chicago undergraduates is named in his honor.
Chief Warrant Officer Harold Edward Wilson (December 5, 1921 – March 29, 1998) was a United States Marine who earned the United States’ military highest award, the Medal of Honor, for heroism as a platoon sergeant of a rifle platoon in Korea on the night of 23-April 24, 1951.
 He received the award from President Harry S. Truman during ceremonies at the White House on April 11, 1952.
USS "Harold E. Holt" (FF-1074) was a "Knox"-class frigate of the United States Navy.
 She was named for Harold Holt, the Prime Minister of Australia, who had disappeared while swimming in 1967.
John Charles Niedermair (18931982) was an American Naval architect whom the U.S. Naval Institute reports as being 'Among the most noted U.S. naval architects of [the 20th] century' and whom the American Society of Naval Engineers note as 'the father of today's modern United States Navy ships'.
 He worked in the U.S. Navy's Bureau of Ships from 1928 to 1958 during which time he directed the design of what were to become 8,000 ships, notably the Landing Ship, Tank.
 He received the U.S. Navy Distinguished Civilian Service Award; the Society of Naval Architects and Marine Engineers 1958 David W. Taylor Medal; the U.S. National Academy of Sciences 1976 Gibbs Brothers Medal; and the American Society of Naval Engineers 1978 Harold E. Saunders Award.
Harold E. LeMay (September 4, 1919 – November 4, 2000) was the owner of Harold LeMay Enterprises, a refuse company in the Tacoma, Washington metro area.
 He was the owner of one of the largest private automobile collections in the world at the time of his death.
Harold Edward Palmer, usually just Harold E. Palmer (6 March 1877 – 16 November 1949), was an English linguist, phonetician and pioneer in the field of English language learning and teaching.
 Especially he dedicated himself to Oral Method.
 He stayed in Japan for 14 years and reformed its English education.
 He contributed to the development of the applied linguistics of the 20th century.
The position of President of Abkhazia was created in 1994.
 Before the office of president was created the head of state position was known as the Chairman of Parliament between 1992 and the creation of the 1994 constitution.
 Before the position of Chairman of Parliament, the highest office in Abkhazia was the Chairman of the Supreme Soviet.
 The post would last from the declaration of sovereignty from the Georgian Soviet Socialist Republic on 25 August 1990 until the outright declaration of independence on 23 July 1992.
Harry S Truman College, popularly called Truman College and formerly called Mayfair College, part of City Colleges of Chicago, a college that offers multiple 2-year associate degrees, as well as occupational training in a number of fields.
 Located at 1145 West Wilson Avenue in the Uptown neighborhood, the school was named in honor of U.S. President Harry S. Truman, nominated for the vice presidency in the 1944 Democratic National Convention at the Chicago Stadium.
 Nominated to join the Franklin D. Roosevelt Democratic ticket, Truman was a proponent of public colleges and universities.
 Truman is the largest of the City Colleges of Chicago with a yearly enrollment of over 23,000 students, and has the largest English as a second language and GED program in Illinois.
Arthur John Cronquist (March 19, 1919 – March 22, 1992) was a United States biologist, botanist and a specialist on Compositae.
 He is considered one of the most influential botanists of the 20th century, largely due to his formulation of the Cronquist system.
 Two plant genera in the aster family have been named in his honor.
 These are "Cronquistia", a possible synonym of "Carphochaete", and "Cronquistianthus", which is sometimes included as a group within "Eupatorium".
 The former was applied by R.M. King and the latter by him and Harold E. Robinson.

Question: What head of state position was held by Harry S Truman when he gave Harold E Wilson the Medal of Honor?
Answer: President of the United States