Frederick Henry Osborn was an administrator, humanist, and scientist. This collection includes letters, diaries, reports, speeches, drafts of articles and books, oral history interviews, and photographs. There are diaries and letters for his service in Europe with the American Red Cross during World War I. There are some letters and documents, such as patent applications and plans for inventions, from his "business career" period prior to 1928, after which he became a research associate at the American Museum of Natural History studying anthropology and population. This study led to his later important contributions to the redirection of eugenics study in the U.S. and the reorganization of the American Eugenics Society. His other related organizational work and publications relating to human and population genetics are also documented in this collection. There is significant material (letters, diaries, reports) related to Osborn's World War II contributions as the chairman of the Civilian Committee on Selective Service in 1940, and as head of the Morale Branch of the U.S. Army (later, the Information and Education Division of Special Services) in 1941. Also included are important documents, especially his diary, from his work as deputy representative on the U.S. Atomic Energy Commission and the U.N. Commission for Conventional Armaments. His letters, writings, and speeches relating to foreign policy are extensive, spanning the period from the 1940s until his death, much of it from the Vietnam War years. The correspondence with Kathleen Harris is particularly rich in this respect. There is family correspondence reflecting his dynamic philosophy of life, with long series of letters to his parents (1917-1945) and to his children and grandchildren. His later civic and regional interests, as a long-time resident of Garrison, N.Y., are evidenced in the work he did on the Palisades Interstate Park Commission.

An administrator and humanist, Henry Allen Moe (1894-1975) was the first director of the National Endowment for the Humanities, and was a president of the American Philosophical Society from 1959 to 1970. The Moe Papers are a vast and rich resource documenting all phases of Moe's career, but are also a major source of information on twentieth-century philanthropic organizations. As the first Secretary, then Administrator, and finally President of the John Simon Guggenheim Foundation (ca. 1925-1963), Moe made contact with the influential and the aspiring in the worlds of banking, finance, the arts, and sciences. This collection is particularly strong in correspondence and information relating to Latin America, much of it generated through Moe's oversight of the Guggenheim's Latin America Fund and by Moe's otherwise keen interest in the region. This material is diverse, ranging from material on agriculture (see Escuela Agricola Panamericana, 15 boxes) and Peruvian archaeology (see Alfred Kroeber's detailed report) to many folders of correspondence and grant reports from artists, writers, and politicians of South and Central America. Moe served as trustee, officer, and committee member of over thirty private foundations, many of which are well represented in the collection by yearly reports and grant applications, among other types of records.