Adlai Ewing Stevenson III References Adlai Ewing Stevenson III United States senator Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of EncyclopΓ¦dia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Adlai E. StevensonHis eldest son, Adlai E. Stevenson III, was elected to the U.S. Senate from Illinois in 1970 and again in 1974 (retiring in 1981), after having served in the state legislature (1965β67) and as state treasurer (1967β70). Read MoreHis eldest son, Adlai E. Stevenson III, was elected to the U.S. Senate from Illinois in 1970 and again in 1974 (retiring in 1981), after having served in the state legislature (1965β67) and as state treasurer (1967β70). Read More