In 1913, William Robertson Coe purchased the house and estate, and began today's plantings and landscaping under the guidance of the Boston landscaping firm of Guy Lowell and A. Robeson Sargent, son of Charles Sargent, founder of the Arnold Arboretum. In 1915, Lowell and Sargent oversaw transport of two gigantic beeches from Fairhaven, Massachusetts, the childhood home of Mary "Mai" Huttleston (née Rogers) Coe (who was the daughter of Henry H. Rogers of Standard Oil). The trees, with root balls in diameter, were ferried across Long Island Sound in mid-winter. Roads were widened and utility wires temporarily removed to make way. Only one of the two trees survived the journey. Unfortunately, the second beech tree has recently died, and was taken down in February 2006. However, the “Fairhaven Beech” will live on: seedlings were collected from the tree from 2000-2005.