Mary Hayward Weir (1915 - 1968) was an American steel heiress and socialite. She was the wealthy widow of Pittsburgh steel king Ernest T. Weir, and the former wife of author Jerzy Kosinski. Born Mary Emma Hayward in Indianapolis, Indiana. She was working as a secretary for the National Steel Corporation in 1938 when she met and later married her boss, Chairman and CEO Ernest T. Weir. Wikipedia
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