Marshall Field III was 28 years of age and one of the richest people in the world when he came upon the idea of replicating the environment in which he had spent his youth. Raised and educated in England, Field sought the life of an English gentleman here in the United States. In 1921, Field purchased almost 2,000 acres of waterfront property on Long Island's North Shore, which would become Caumsett. Forty years later, Field's third wife, Ruth, opened...