Alexander "Alick" Joy Cartwright Jr. is referred to as a "father of baseball". The rules of the modern game were thought to be based on the Knickerbocker Rules developed by Cartwright and a committee from his club, the Knickerbocker Base Ball Club, in 1845, although this is disputed. With the myth of Abner Doubleday inventing baseball debunked, Cartwright was inducted into the National Baseball Hall of Fame as a pioneering contributor 46 years after his death. Although it has been stated in secondary sources that Cartwright was officially declared the inventor of the modern game of baseball by the 83rd United States Congress on June 3, 1953, the Congressional Record, the House Journal, and the Senate Journal from June 3, 1953 did not mention Cartwright.

https://en.wikipedia.org/wiki/Alexander_Cartwright