The Hungerford Family Foundation, Inc. - THFFI.org - Clarence Mackay and his three children, John, Ellin, and Katherine Circa 1917

This is an image of John William Mackay (US3405), Clarence Mackay (US1797), Ellin Mackay (US1797b), and Katherine Duer Mackay (US1797a) circa 1917.

See Harbor Hill, Clarence Hungerford Mackay's Mansion.

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