I recently picked up this Carl Hubbell autograph on eBay. Nicknamed "The Meal Ticket" and "King Carl", he was an amazing pitcher for the New York Giants (twice voted NL MVP!) and apparently remained on the team's payroll for the rest of his life!
Hubbell was inducted into the Baseball Hall of Fame in 1947, making him the earliest inductee in my collection. He passed away in the late 80s, so this is also perhaps the player in my collection who has been passed away for the longest time.