Economic impact
Founded the Negro National League (NNL) on 13 February 1920 in Kansas City, Missouri, the first organized professional baseball league for Black players in the United States. The NNL's eight founding franchises created stable, salaried professional employment for hundreds of Black players, managers, umpires, and stadium workers who were excluded from the segregated American and National Leagues. Also owned and managed the Chicago American Giants, based at Schorling's Park on Chicago's South Side; the team won the first three NNL championships (1920, 1921, and 1922). His organizational model established the template for the subsequent Negro Leagues, which at their peak in the 1940s employed an estimated 400 to 500 professional players annually. Foster was inducted posthumously into the National Baseball Hall of Fame in Cooperstown in 1981. He died on 9 December 1930.