William Robertson Coe
Village of Upper Brookville, NY
In the early twentieth century, the north shore of Long Island became America's "Gold Coast," where industrialists and financiers built grand country estates amid rolling lawns and gardens. Planting Fields was one of the finest of these, shaped by William Robertson Coe (1869–1955), a businessman who made his fortune in insurance and rail and poured his resources into an ambitious landscape of specimen trees, greenhouses, and formal gardens. This marker, dedicated in 1962, honors the vision and generosity that turned a private estate into a lasting public arboretum devoted to horticulture.