Addison Gallery of American Art (Andover, Massachusetts) Drawer 169, Folder 11 Highlight Addison Gallery of American Art (Andover, Massachusetts) Avery Drawings & Archives Collections Charles A. Platt architectural records and papers, 1879-1981, bulk 1882-1933Series I: Architectural DrawingsSubseries 2: Presentation and Publication DrawingsMASSACHUSETTS
Addison Gallery of American Art (Andover, Massachusetts), 1929-1931 Range nyda.1974.002.02787-.02824 Highlight Addison Gallery of American Art (Andover, Massachusetts), 1929-1931 Avery Drawings & Archives Collections Charles A. Platt architectural records and papers, 1879-1981, bulk 1882-1933Series I: Architectural DrawingsSubseries 1: Working DrawingsMASSACHUSETTS
Phillips Academy (Andover, Massachusetts). Addison Gallery of American Art, 1929 Oct 21 Box 06, Folder 54 Highlight Phillips Academy (Andover, Massachusetts). Addison Gallery of American Art, 1929 Oct 21 Avery Drawings & Archives Collections Charles A. Platt architectural records and papers, 1879-1981, bulk 1882-1933Series III: Project RecordsMASSACHUSETTS
Charles A. Platt architectural records and papers, 1879-1981, bulk 1882-1933 Highlight Addison Gallery of American Art Avery Drawings & Archives Collections
Taconic Foundation Box 40, Folder 2 Highlight Hayes, Bartlett H. Director, Addison Gallery of American Art, Phillips Academy. 1965; Re DH's Avery Drawings & Archives Collections Douglas Putnam Haskell papers, 1866-1979-(bulk 1949-1964).Series II: Personal Correspondence