Professor, Dept of Art and Art History, The University of Texas at Austin

Dept Anthropology, University of Western Ontario, retired

School of Anthropology, University of Arizona

University of New Mexico

Emeritus Professor of Anthropology, Wayne State University

Professor of Anthropology, University of Florida

Director of Proyecto Templo Mayor, Instituto Nacional de Antropología e Historia, Mexico

Director, Dept. Anthropology, National Museum of Natural History, Smithsonian Insitution

Professor of Anthropology, Dartmouth

Senior Research Chemist