John William Mackay Jr. (1870-1895)
John William Mackay Jr., killed in an accident in early adulthood, unmarried
He was killed in a steeplechase race at a chateau outside Paris. He was buried next to his father in Brooklyn, New York. He was unmarried.
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Contributed by Mark Meredith on 08/03/2019 and last updated on 08/03/2019.