Adlai Ewing Stevenson III was an American attorney and politician of the Democratic Party who represented Illinois in the United States Senate from 1970 to 1981. A member of the prominent Stevenson family, he also served as a member of the Illinois House of Representatives and Illinois Treasurer. He unsuccessfully ran for governor of Illinois in 1982 and 1986. He had been awarded Japan’s Order of the Sacred Treasure with gold and silver stars and was an honorary Professor of Renmin University, China.

Adlai Ewing Stevenson II was an American politician and diplomat who was the United States Ambassador to the United Nations from 1961 until his death in 1965. He previously served as the 31st governor of Illinois from 1949 to 1953 and was the Democratic nominee for president of the United States in 1952 and 1956, losing both elections to Dwight D. Eisenhower in a landslide. Stevenson was the grandson of Adlai Stevenson I, the 23rd vice president of the United States.