I was looking at Amazon's List of Bestselling Authors and noticed the claim that Dr Seuss (which rhymes with "voice", by the way) won three Academy Awards.
However, a look at his award page on IMDb doesn't list any.
Turns out that two films he co-wrote won Oscars (one for animated short and one for feature-length documentary) but, of course, those Oscars go to the producer(s).
Haven't found the third yet.