Matinecock Farm

Factory Pond Road, Lattingtown & Locust Valley, Nassau County, New York

From 1957, this was the home of John William Mackay III (1905-1990), the heir to what remained of Harbor Hill, and his wife Gwen Rose (1908-2004).

This house is best associated with...

John William Mackay III

of 'Happy House' Roslyn & Matinecock Farm, Lattingtown, L.I., New York

1905-1990

Josephine Gwendolyn Rose

Mrs. "Gwen" (Rose) Mackay

1908-2004