Acadia National Park, Maine
Arnold Arboretum of Harvard University, Jamaica Plain, Mass.
Asticou Terraces and Thuya Gardens, Northeast Harbor, Maine
Bar Harbor Garden Club, Bar Harbor, Maine
Bar Harbor Historical Society, Bar Harbor, Maine
California Garden and Landscape History Society
Coastal Maine Botanical Gardens, Boothbay, Maine
Garden Conservancy, Cold Spring, New York
Maine Historical Society, Portland, Maine
Mount Desert Island Historical Society, Mount Desert, Maine
Pressley Associates, Inc. Boston, Mass.
Smithsonian Institution, Archives of American Gardens, Washington D.C.
The Cultural Landscape Foundation, Washington D.C.
The Mount Estate and Gardens, Lenox, Mass.
University of California, Environmental Design Archives, Berkeley, Calif.
Woodlawn Museum (The Black House), Ellsworth, Maine