Philanthropist David Koch and wife Julia Koch celebrate 100 years of... | FilmMagic | 123593190
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TV host David Koch and his wife arrive at the world premiere of... News Photo - Getty Images
Sydney, Australia. 2 December 2014. David Koch ('Kochie') and wife Libby arrive on the red carpet at The Water Diviner World Premiere at the State Theatre, 49 Market Street, Sydney, NSW, Australia.
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Businessman David Koch and wife Julia are photographed with children... News Photo - Getty Images
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NYC's richest woman has turned into a hermit in the Hamptons