Claim: Harper Lee, who won the 1961 Pulitzer Prize, assisted her close friend Truman Capote, who was the basis for the character Dill in To Kill a Mockingbird.
Evidence: Nelle Harper Lee (April 28, 1926 – February 19, 2016) was an American novelist best known for her 1960 novel To Kill a Mockingbird. It won the 1961 Pulitzer Prize and has become a classic of modern American literature. She assisted her close friend Truman Capote in his research for the book In Cold Blood (1966). Capote was the basis for the character Dill in To Kill a Mockingbird.