The papers of art historian and museum curator W.G. (William George) Constable measure 25.7 linear feet and date from 1905 to 1981, with the bulk of the material from 1920 to 1976. The papers include biographical material; professional and personal correspondence; extensive lectures, writings, and notes; exhibition and book research files; printed materials; and photographs, glass plate negatives, and slides. There is substantive correspondence related to Constable's participation in the American Defense Harvard Group and about the formation of the Roberts Commission, including correspondence with Ralph Perry, Hugh Hencken, Paul Sachs and George L. Stout. There are numerous official reports prepared by Constable after World War II for the U. S. Office of Military Government for Germany.

The papers of curator and museum director James J. Rorimer measure 2.3 linear feet and date from 1921 to 1982, with the bulk from 1943-1950. The papers include documentation of James J. Rorimer's World War II service in the Monuments, Fine Art and Archives Section of the U.S. Army and his activities protecting historic and cultural sites from bombing, and locating and recovering art work and cultural icons stolen by the Nazis. Found within the papers are scattered biographical materials and correspondence, writings include draft versions of Rorimer's book Safe-Keeping or Survival: The Salvage and Protection of Art in War, financial records, photographic materials including a photo album containing photographs of European art work and cultural sites where Rorimer worked, newsclippings and additional printed materials, and one scrapbook of clippings dating from World War II.

The German Army and Navy experimental station at Peenemunde, on the North Sea coast of Germany, was established in the mid-1930s to continue the rocketry work begun at Kummersdorf in 1930.

The Thomas Carr Howe papers measure 4.4 linear feet and date from 1932 to 1984. Howe was director of the California Palace of the Legion of Honor in San Francisco for nearly 40 years, and he served as one of the Monuments Men in the Monuments, Fine Art and Archives (MFAA) Section of the U.S. Army during World War II. The collection documents Howe's MFAA work in Germany and Austria locating and recovering cultural artifacts and artwork stolen by the Nazis. There is significant correspondence with friends and colleagues, as well as fellow Monuments Men such as Samson Lane Faison, Edith Standen, and George Stout. The papers also includes reports, inventories of stolen artwork, maps, annotated photographs, a scrapbook, and photographs. The papers also document Howe's later work at the California Palace of the Legion of Honor.

This collection consists of five factory drawings of the Flettner Fl 282 Kolibri ("Hummingbird") motor and transmission systems, 1940 to1941.

The papers of artist, collector, librarian, and scholar Kate Steinitz measure 4.3 linear feet and date from circa 1910 to 2002. The collection documents Steinitz's life and career in Germany and the United States through biographical material; correspondence; writings, including manuscripts and travel diaries; exhibition files; personal business records; printed material; travel scrapbooks; artwork; and photographs.

The papers of conservator and museum director George Leslie Stout measure 6 linear feet and date from 1855, 1897-1978. Stout was head of the conservation department at Harvard University's Fogg Art Museum, director of the Worcester Art Museum and Isabella Stewart Gardner Museum in Massachusetts, and a member of the Monuments, Fine Art and Archives (MFAA) Section of the U.S. Army during World War II. The bulk of the collection consists of correspondence with family, friends, colleagues and professional associations. There are letters from fellow Monuments Men who served in the MFAA section such as Thomas Carr Howe, Ardelia Hall, Lamont Moore, Theodore Sizer, Langdon Warner and several other prominent arts administrators. The papers also contain biographical materials, writings, sketches and one sketchbook, military records, printed materials, and photographs.

The papers of Parisian art dealer, René Gimpel (1881-1945), dating from circa 1890-1966 (bulk 1902-1930s), and measuring 0.4 linear feet, provide a small but significant window into the crucial relationship between American collectors and the art dealers who supplied them, as they amassed some of the most influential art collections of the first half of the twentieth century. Gimpel's work as an art dealer is documented through correspondence with his parents, clients, business associates, and collectors, including Helen Frick and Duveen Brothers, Blake-More Godwin and the Toledo Museum of Art, Florence Libbey, Samuel H. Kress, Silva White, and others, and through printed material, writings by Gimpel, and photographs of René and Ernest Gimpel and others.

This collection consists of the Air Force master microfilm of captured German and Japanese documents pertaining to aviation. The documents cover a wide variety of subjects, including aircraft and engines, flight test reports, proposals, and engineering studies. English translation is provided for some documents.