The Franz Boas Personal and Professional Papers contain a diverse assemblage of professional correspondence, family letters, and diaries, with a valuable series of essays and lectures by Boas on both professional and political topics (democracy, race, etc.). (NOTE: This collection is not to be confused with the much larger Franz Boas Papers collection (Mss.B.B61), which contains the vast majority of Boas's professional correspondence and was referred to as the "Professional Papers" in earlier decades.) During the half century leading up to the Second World War, Franz Boas helped to define academic anthropology in the United States. Trained as a geographer at the University of Heidelberg, Boas worked initially on the Inuit of Baffin Island and subsequently on the cultures of the Indians of the Northwest Pacific Coast, becoming a leading figure in American anthropology by the first decade of the twentieth century. As Professor of Anthropology at Columbia University, Boas made significant theoretical contributions to ethnology, linguistics, and physical anthropology, helping to ingrain the four fields approach in his discipline and introducing the concept of cultural relativism into wide currency. He was, as well, a committed Socialist and an ardent opponent of both racism and fascism.

Elsie Clews Parsons (1875-1941) was trained as a sociologist at Columbia University, but made her greatest achievements in the fields of anthropology and folklore. Parsons' early works in the field of sociology dealt primarily with gender roles, conventions of society, and the effect of society's pressures on the individual. After a trip to the American Southwest with her husband in 1910, Parsons' interests turned to anthropology. She began making field trips to Arizona and New Mexico and, under the influence of her friend Franz Boas, Parsons recorded in meticulous detail data on social organization, religious practices, and folklore of the Southwest Indians. Concurrently, Parsons conducted research in folklore, concentrating on folk tales of Afro-Americans and Caribbean peoples. She was active in a number of professional associations and was the associate editor of the Journal of American Folklore from 1918 until her death. The Parsons Papers were acquired as two separate accessions and remains organized in two distinct subcollections. Subcollection I (572 P35), acquired in 1949, contains approximately 12 linear feet of materials focused on Parsons' career in anthropology. Subcollection II, acquired in 1985, consists of 26.25 linear feet of materials divided into ten series, covering a larger scope of Parsons' life, including family and personal correspondence.