New York City librarian Robert W. Henderson documented Cartwright's contributions to baseball in his 1947 book "Bat, Ball, and Bishop". Although there is no question that Cartwright was a prominent figure in the early development of baseball, some students of baseball history have suggested that Henderson and others embellished Cartwright's role. The primary complaint is that touting Cartwright as the "true" inventor of the modern game was an effort to find an alternative single individual to counter the "invention" of baseball by Abner Doubleday.