Stevenson was never Vice President.
Fact checking and editing are as dead as the Dinosaurs.
Moving with his family in 1906 to Bloomington, Ill., he followed in the footsteps of his grandfather, Vice Pres. Adlai E. Stevenson (1893–97), by entering the practice of law (Chicago, 1926) and devoting himself to public service.
https://www.brainyquote.com/quotes/adlai_stevenson_i_121651
He most certainly was VP! You are thinking of his grandson.