Historian. Correspondence (1962–1976); manuscripts (1960s); microfilmed and photocopied documents (1730–1790); research notes (n.d.); lectures (n.d.); student reports (n.d.); student research papers (n.d.); and printed materials (1853–1975), including book reviews and reprints, all relating to Moorhead’s teaching of Latin American history at the University of Oklahoma, and to his publications about Jacobo de Ugarte, the presidio, other Spanish colonial institutions in the Southwest, and the Indians of Mexico and the southwestern United States.