Jackie Robinson was the first, but not the only African American player to cross over Major League Baseball’s “invisible color line” in 1947. Larry Doby played his first game for the Cleveland Indians on July 5th of that year to become the first African American in the American League (the Dodgers and Robinson were in the National League). Two weeks later, the St. Louis Browns signed two black ballplayers: Willard Brown and Hank Thompson and then in August the Dodgers signed Don Bankhead.
The Browns ignored other African American players with Major League potential they could have signed at that time. It lost the opportunity to be a part of baseball history. The team did not sign another one until 1953 when under the new ownership.