The Scratch Minutes subseries contains the surviving "scratch" minutes of faculty meetings, or the rough drafts from which the details, names, and figures of the final minutes are taken. These notebooks are incomplete and often difficult to read, but sometimes contain details omitted in the final minutes.

The Photographs Subseries provides a visual documentation of the life and activities of Woodrow Wilson. It includes the prints and negatives used in the Papers of Woodrow Wilson, along with other photographs sorted by subject. While the bulk of the images are of people and places, there are also photographs and negatives of important correspondence and documents. Additionally, this subseries contains a run of United States Signal Corps photographs from Wilson's presidential era.

Consists of biographical files for Brandon Barringer as well as Daniel Moreau and Felicity Barringer and other family members.

This subseries consists primarily of photographs of Indic temples and religious artwork, sculptures, figures, drawings, textiles, jewelry, inscriptions, coins, patterns, dancers, theater actors, and people, primarily from India, and also from Ceylon (Sri Lanka), Cambodia, Java, Siam (Thailand), China, Bali, Afghanistan, Burma, Assyria, Greece, Nepal, Persia (Iran), Tibet, Sumatra, Japan, Korea, Laos, Egypt, Turkey, Bhutan, Korea, Malaysia, Vietnam, Morocco, and Nigeria. Photographs show temples and artwork dating from the 3rd century B.C. until the 19th century. Though some photographs were taken by Coomaraswamy, most were collected from miscellaneous photographers, museums, and archaeological institutions, and many are unattributed.

Contains family correspondence with Gwinn's mother, Matilda Bowie Gwinn, her husband's parents, Mahalia Riley and Alfred James Hodder, and other relatives, as well as correspondence with friends and acquaintances, especially M. Cary Thomas, with whom she corresponded writing under many different pet names, Katharine Fullerton and Gordon Hall Gerould, and including correspondence with Gwinn's special Baltimore friends, Bessie King, Mary E. Garrett, Julia Rogers, and Nancy Howard. The correspondence is full of references to Jessie Donaldson Hodder's presence in the lives of the Hodders, as well as references to M. Carey Thomas' reaction to the Gwinn and Hodder relationship.

The Organizational Files Subseries documents Pendray's involvement with the American Interplanetary Society (later renamed American Rocket Society), the American Institute of Aeronautics and Astronautics (AIAA), the National Aeronautics and Space Administration (NASA), and the Guggenheim Foundation. The material pertaining to the American Interplanetary Society consists of financial documents, internal correspondence, meeting minutes, annual reports, published journals, photographs and sketches related to rocket tests, pamphlets, and newspaper clippings. The history of early rocket technology and some of the first experimental rockets are well-documented here. The bulk of the American Institute of Aeronautics and Astronautics related material consists of correspondence. Additional American Rocket Society material and a history of the AIAA's G. Edward Pendray Award are included also. The Guggenheim Foundation documents pertain to Pendray's involvement in establishing several aviation research centers. The bulk of the NASA related documents are printed materials that document NASA's developmental years.

Consists of personal, financial and legal documents of the Richter and Achenbach families. Includes family letters and diaries.

Consists of correspondence with his wife, Louise Selina Bonynge Maxwell, as well as with the Brazilian Embassy, Edward VII, King of Great Britain, George V, King of Great Britain, several Earls and Barons, and others.

Consists of miscellaneous correspondence as well as miscellaneous papers of the Hutton family.