From 1916 to 1978, Long Hill was the summer home of noted author and editor of The Atlantic Monthly, Ellery Sedgwick, and his family. He summered here with his first wife, Mabel Cabot Sedgwick, an accomplished horticulturist, gardener, and author of The Garden Month by Month, and his second wife, Marjorie Russell Sedgwick, a rare plants specialist—both of whom created a delightful, enchanting landscape, surrounded by more than 100 acres of woodland. Today, visitors delight in the beauty of Long Hill’s structured and naturalistic gardens as well as a network of woodland trails. A diverse collection of trees, shrubs, and …