G. Frederick Reinhardt
George Frederick Reinhardt (1911–1971) was an American foreign service officer and diplomat from 1937 until 1968. He was considered by his peers to be among the finest diplomats of his era. Reinhardt was the U.S. ambassador to South Vietnam (1955–1957), to the United Arab Republic and North Yemen (1960–1961) and to Italy (1961–1968). In Vietnam, he worked to improve relations between the United States and South Vietnamese Prime Minister Ngo Dinh Diem.
Source: Wikipedia