Files relating to the Leightons' work with the Navajo include lectures on personality organization study; correspondence, typescript and manuscript notes on Navajo religion; typescripts, correspondence, notes, and forms on various human relations subjects; Navajo personality studies; notes and reports on material and social aspects of Navajo culture; paper: "Some Types of Uneasiness and Fear in a Navaho Indian Community," 1941-1942; correspondence; and clippings relating to Navajos.