A nice database of all 1968 and 1969 players
 

Here attached is a database of all players who played in 1969 or retired after the 1968 season in their rookie seasons.

This came from the list of players in a What If Sports league called the 1969 Rookie Season League in which we are drafting from this list of players but all in their rookie years. So Mantle is here in 1951, Koufax in 1956 (I think '56) etc.

Hope someone finds it enjoyable as a baseball world to create and play.