Clue 1: I was born in Chicago, Illinois, in 1930 and died in 1999.
Clue 2: I am an author, a songwriter and an artist.
Clue 3: My simple line drawings illustrate many of the silly rhymes in my books, which include Falling Up, Where the Sidewalk Ends and a new one, Runny Babbit.
Who am I? _________________