Some pre MLB rookies of some established Negro Leaguers.
July 17 1947 Wire of Hank Thompson on the night of his first game (Making the Browns to be the third team with an African American player just 3 months after Jackie Robinson) and 2 days before eventual Negro HOF player Willard Brown played his first MLB game.
July 9, 1948 Satchel Paige before the game he would make his Debut in during the 4th inning relieving Bob Lemon.
1948 Team photo of Cuban Almendares with Monte Irvin a year prior to becoming the first African American player for the Giants.