The collection was originally housed in several filing cabinets in and near Miwa Kai's office space in Kent Hall, which she shared with Wm. Theodore de Bary. Kai kept well-organized files, and most of her original file names have been retained. In addition to the papers she collected and created through the course of her work and personal life, she also inherited papers created by Howard P. Linton and Ryusaku Tsunoda, which she incorporated into her own files and enhanced with supplementary material and her own hand-written notes.

The Ta-Chun Hsu papers (徐大春檔案) document his personal life and provide a glimpse of his career in China and in the United States. The bulk of the papers consist of correspondence related to his family and his personal life as a Chinese-American and an immigrant living in New York. The correspondence also highlights his relation to a prominent Chinese educator and philosopher, Hu Shih (胡適) and his family. There are also materials related to his father, Hsu Singloh (徐新六), who was a major finance and banking leader during the Second Sino-Japanese War. Also included are immigration and travel documents of T.C. Hsu. Other materials also include news clippings, articles, financial records, printed materials, portraits and photographs, maps and postcards.

The Theodore Richards Conant Collection documents the life and film making career of Theodore Richards Conant, dating from 1949 to 2010, with the bulk of the materials dating from 1953 to 2000. The focus of the materials is on the Korean War, Korean culture and society. Materials in the collection consist of his personal papers and a substantial amount of audiovisual materials related to the documentary films created and/or collected by him during his career. The personal papers consist of clippings, ephemera, correspondence, scenarios, notes, catalogs, journals and other unique items. The photographs in the collection document Korea's political and cultural aspect, as well as Conant's work in Korea as a film producer while working in the UN Korean Reconstruction Agency (UNKRA). The audiovisual materials are the documentaries directed and filmed by Conant, related to the Korean War, Korean society and culture.