For more than 150 years, only three families have called "The Oaks" home. The recently-listed 9.4-acre property, about 20 miles south of Boston, literally commands the entire waterfront of Cohasset Harbor.

The Barrons and the Bancrofts, heirs to the Dow Jones and Wall Street Journal fortunes, lived for generations at this oceanside estate.

The 20,000-square-foot, 45-room Georgian Revival mansion, and its swimming pool, deep-water dock, skating pond, beach, tennis courts, and outbuildings, is only part of the package.

A marina, 55-room inn, and "Salt House" restaurant complex also comprise the privately-held harbor compound.

Jonathan P. Radford has listed the property at $55 million.