Series I: Subject Interest Material: Artists and Movements 1930s-1960s
Series II: Giorgio de Chirico ca. 1935-1970s
Subseries II.A: Catalogs and Gallery Announcements
Subseries II.B: Postpublication Material: Correspondence 1955-1960, 1970s
Subseries II.C: 1955 de Chirico Book: Giorgio de Chirico
Subseries II.D: De Chirico Exhibition, MoMA Exh. #583 Sept. 6-Oct. 30, 1955
Subseries II.E: Clippings ca. 1949-1960
Subseries III.A: JTS Bibliog. by JTS 1960
Subseries III.D: Museum Matters 1970s-1990s
Series IV: Museum Matters 1940s-1970s
Subseries IV.A: Chronological Files
Subseries V.A: Miscellaneous Late Items
Subseries V.B: Insurance: Collection Inventory
Subseries V.C: Correspondence with Artists 1932-1970
Subseries V.D: Correspondence with Dealers 1930s-1940s
Subseries V.E: Exhibition Catalogs
Subseries VI.A: Financial Data
Subseries VI.B: Williams College/Early Education
Subseries VI.D: Thomas S. Childs, Jr. 1950s-1960s
Series VII: Albums ca. 1940-1955
Series VIII: Addenda to the James Thrall Soby Papers
Subseries VIII.A: Soby Autobiographical Memoir
Subseries VIII.B: James Thrall Soby Bequest
Subseries VIII.C: Photographs by James Thrall Soby