Indians of North America (3) Native Americans (3) Chiricahua Indians (2) Mescalero Indians (2) Kiowa Indians (1)

Underwood & Underwood (29) Garden Club of America (25) Pennsylvania Railroad. (15) H.C. White Co. (14) Clarke, Diane B. (10) White, C. W. (10) Sweeney, Sandi (5) American Stereoscopic Co. (3) Elisofon, Eliot (3) Adams, Molly (2) American Society of Landscape Architects (2) Arthur, James (James Osborne) (2) Borie, Mary Lakin Hoffman (2) Borie, Peter (2) Harvard University (2) Lakin, Helen Beaman (2) Lenox Garden Club (2) Lincoln, T.H. (2) MacCullough Soap Company. (2) Olmsted Brothers (2) Parson, Cynthia (2) Pease, Phineas (2) Sears, Thomas Warren (2) Tibbetts, Eleanor Sears (2) Warshaw, Isadore, d. 1969 (2) Alexander, Madelaine Francis Laughlin (1) Alexander, Maitland Reverend Dr (1) Amberger, Michael (1) Arreola, Manuel (1) B. L. Singley (1) Burnet, E. (1)

Gardens (27) Railroads (16) Trains (16) Waterfalls (13) Lawns (9) Rivers (9) Houses (7) Trees (7) Mountains (5) Animals (4) Stairs (4) Stations (4) Wisteria (4) Cherry (3) Cultural landscapes (3) Historic sites (3) Islands (3) Peonies (3) Perennials (3) Slavery (3) Walkways, brick (3) Birdhouses (2) Birds (2) Clematis (2) Container gardening (2) Courtyards (2) Fences (2) Flower beds (2) Garages (2) Garden borders (2) Geraniums (2)

United States of America (28) Horseshoes Stable Garden (Morristown, New Jersey) (16) Pennsylvania (16) Allegheny Mountains (Pennsylvania) (14) Horseshoe Curve National Historic Landmark (Pa.) (13) Niagara Falls (N.Y. and Ont.) (11) Horseshoe Falls (Niagara, N.Y.) (10) Canada (5) Altoona (Pa.) (4) Africa (3) New York (3) Senegal (3) Mary's Garden (Stockbridge, Massachusetts) (2) New York (N.Y.) (2) Pittsburgh (Pa.) (2) Suarez Garden (Brookville, New York) (2) Boxwoods (Scotch Plains, New Jersey) (1) California (1) Goat Island (Niagara, New York) (1) Goat Island, Niagara (1) Hillside Garden (Atlanta, Georgia) (1) Horseshoe Curve National Historic Landmark (Pennsylvania) (1) Hydrangea House (Indianapolis, Indiana) (1) Poplar Hill (Sewickley, Pennsylvania) (1) Sands Point Condominium (Longboat Key, Florida) (1) Table Rock (New York) (1) United States (1) Ventana (Paradise Valley, Arizona) (1) Willard House (Orford, New Hampshire) (1)

Archives Center, National Museum of American History (32) Archives of American Gardens (32) Eliot Elisofon Photographic Archives, National Museum of African Art (3) National Museum of the American Indian (2) National Anthropological Archives (1) Ralph Rinzler Folklife Archives and Collections (1)