Letters between various family members of Franz Boas, nearly all in German. Although the topics relate primarily to personal, familial matters, information about Boas's career and (more generally) his intellectual formation and beliefs.

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.

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. This collection includes correspondence that Boas carried on with his colleagues in anthropology, as well as with those in the other social sciences and sciences. This correspondence is rich as a source for twentieth-century historians interested in "radical" social causes, since Boas was a socialist and an outspoken voice for progressive social causes.