Abstract: This collection documents the life and estate of Horatio Hollis Hunnewell (1810-1902), one of the most prominent horticulturists in America in the nineteenth century. Practicing horticulture for nearly six decades on his estate in Wellesley, Massachusetts, he was perhaps the first person to cultivate and popularize rhododendrons in the United States. The collection includes biographical material, portraits, published volumes of his letters and diary, and extensive written and photographic...