Jackie Kennedy Onassis’ Martha’s Vineyard Estate Hits The Market For A... One of Massachusetts' most expensive estates just hit the market on Martha's Vineyard[...] July 1, 2019 / Kellie Speed / Tags: caroline kennedy, Christie's International Real Estate, Cliffs of Gay Head, Hugh Newell Jacobson, Jackie Kennedy, Jackie Kennedy Onassis, Martha's Vineyard, martha's vineyard real estate, Red Gate Farm