Public Domain Superheroes credits him with that name. Whiz lives up to his name by whizzing into the future, which he did in a handful of adventures in early Sure-Fire Comics and Lightning Comics.
I mentioned in a Whiz Wilson posting from 2014 why I would be shy about visiting the future. You can see that by using the link below.
From Lightning Comics Vol. 2 Number 2 (1941). The Grand Comics Database has no guesses for the writer and artist.
In year 6000 Whiz Wilson has a dictator sign an eternal peace treaty! Just click on the thumbnail.