The Frederic J. Agate Papers consists of letters, a diary, and miscellanea documenting the World War I experience of the American Red Cross Ambulance Corps driver Frederic J. Agate.

The Ivy L. Lee Papers consist of personal papers and material from the public relations firm of Ivy Lee and Associates, documenting Ivy Lee's public relations theories and practice. Included are correspondence, diaries, articles, writings, public relations material, newsreels, and photographs reflecting Lee's interest in public relations, transportation (especially railroads), financial markets, and foreign relations, among others. Digital images of the Interborough Rapid Transit posters in Series 9 are available at Digital PUL.

Maurice Pate (1894-1965) was an international civil servant who devoted his career to improving the welfare of children. He was involved in a variety of relief efforts during both world wars and their immediate aftermaths, and was the first Executive Director of UNICEF. Pate's papers document his career as a humanitarian and include correspondence, reports, Pate's notes and writings, publications, and photographs, as well as biographical materials and Pate's personal correspondence.