MLB's Rookie of the Year awards are named for this groundbreaker who won the award in 1947

If you are looking for the MLB's Rookie of the Year awards are named for this groundbreaker who won the award in 1947 answer and solution then you have come to the right place. This question aired today (March 3 2021) in the popular Jeopardy! TV Show. If you would like to know the answer then continue reading below:

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