Anthropologist, linguist, ethnologist, educator, and curator. Microfilm of originals held by the American Philosophical Society of personal and professional correspondence, diaries, and family papers relating chiefly to Boas’s career as an anthropologist and social scientist.

Benjamin C. Gruenberg, author and educator. Sidonie Matsner Gruenberg, author and child study specialist. Correspondence, diaries, speeches and writings, notes, newspaper clippings, printed matter, and other papers relating to the Gruenbergs' personal lives and professional careers.

Archivist and historian. Honorary consultant in international relations, Library of Congress. Correspondence, diaries, articles, reports, memoranda, notes, and miscellaneous papers relating to Leland's career as archivist, historian, and consultant in international relations.

Sociologist and political theorist. Correspondence, writings, speeches, subject file, teaching material, notes and notebooks, projects file, newspaper clippings, printed matter, and other papers documenting Lipset's career as a sociologist and political theorist and his body of work.

Sociologist and educator (Robert Staughton Lynd). Sociologist (Helen Merrell Lynd). Family and general correspondence, writings and lectures, notes, research material, student papers, and miscellaneous biographical and genealogical material chiefly relating to the Lynds' sociological research and writings, especially their study of "Middletown," Muncie, Indiana.