Cartwright was the subject of a 1973 biography, "The Man Who Invented Baseball", by Harold Peterson. He was the subject of two biographies written in 2009. Jay Martin's "Live All You Can: Alexander Joy Cartwright & the Invention of Modern Baseball" supports Cartwright as the inventor of baseball, while "Alexander Cartwright: The Life Behind the Baseball Legend" by Monica Nucciarone credits Cartwright as one of the game's pioneers but not its sole founder. The 2004 discovery of a newspaper interview with fellow Knickerbocker founder William R. Wheaton cast doubt on Cartwright's role. Wheaton stated that most of the rules long attributed to Cartwright and the Knickerbockers had in fact been developed by the older Gotham Club before the Knickerbockers' founding.