Haffner, Jeanne (Dumbarton Oaks, USA)
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David C. Grove (EDT)/ Rosemary A. Joyce (EDT)/ Dumbarton Oaks (COR)
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Dumbarton Oaks (COR)/ Alfred Raymond Bellinger (EDT)/ Philip Grierson (EDT)/ Whittemore Collection (Fogg Art Museum)
（1）
Dumbarton Oaks (COR)/ Elizabeth Hill Boone (EDT)/ Elizabeth Hill Boone
（1）
Dumbarton Oaks (COR)/ Michael F. Hendy
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Dumbarton Oaks (COR)/ Philip Grierson (EDT)/ Alfred Raymond Bellinger/ Philip Grierson/ Whittemore Collection (Fogg Art Museum)
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Dumbarton Oaks (COR)/ Philip Grierson/ Alfred Raymond Bellinger/ Whittemore Collection (Fogg Art Museum)
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Dumbarton Oaks Colloquium on the History of Landscape Architecture (7th : 1979)/ Elisabeth B. MacDougall
（1）
Dumbarton Oaks Colloquium on the History of Landscape Architecture (7th : 1979)/ Therese O'Malley/ Joachim Wolschke-Bulmahn/ Dumbarton Oaks Colloquium on the History of Landscape Architecture (7th :
（1）
Henry Maguire (EDT)/ Dumbarton Oaks (COR)
（1）
J. Scott Raymond (EDT)/ Richard L. Burger (EDT)/ Jeffrey Quilter (EDT)/ Dumbarton Oaks (COR)
（1）
Joachim Wolschke-Bulmahn (EDT)/ Dumbarton Oaks Colloquium on the History of Landscape Architecture (18th : 1995)
（1）
Joachim Wolschke-Bulmahn (EDT)/ Dumbarton Oaks Colloquium on the History of Landscape Architecture (18th : 1995)/ Dumbarton Oaks Colloquium on the History of Landscape Architecture (18th : 1995)
（1）
Michel Conan (EDT)/ Dumbarton Oaks (COR)
（1）
Susan A. Boyd (EDT)/ Marlia Mundell Mango (EDT)/ Gary Vikan (EDT)/ M.D.) Walters Art Gallery (Baltimore/ Dumbarton Oaks (COR)
（1）
Therese O'Malley (EDT)/ Marc Treib (EDT)/ Dumbarton Oaks Colloquium on the History of Landscape Architecture (18th : 1995)
（1）
Trustees for Harvard University Dumbarton Oaks/ Maurice Lalau (ILT)/ Henri Morin (ILT)/ Violet Moore Higgins (ILT)
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