James Robert Proctor (May 1999). "Pine Gables"(PDF). National Register of Historic Places – Nomination and Inventory. North Carolina State Historic Preservation Office. Retrieved 1 February 2015.
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O'Connell, Pamela Licalzi. "Literature; 'The Secret Garden' Has Deep Island Roots", The New York Times, 8 August 2004. Accessed 11 November 2007. "Mrs. Burnett, the author of The Secret Garden and other enduring children's classics, lived on a grand estate in Plandome the last 17 years of her life."