When In Cold Blood was published, Capote didn't give Lee any credit. He merely dedicated the book to her and to his longtime partner, Jack Dunphy. Lee was hurt by this slight, given the time, effort, and work she put into the book.
The James Baldwin "problem novel" mentioned by Capote in the opening party scene is called "Another Country".
Lee and Capote were next-door neighbors in Monroeville, Alabama. They met when they were five years old.
Capote was small and dressed differently than his peers at school, while Lee was a tomboy. Throughout their early childhoods, Lee protected Capote from bullies.