 Hewett suspended his research during Judd's 1924–27 excavation of Pueblo Bonito, financed by the National Geographic Society, but returned to Chetro Ketl in 1929 with graduate students from his newly founded Department of Archaeology and Anthropology at the University of New Mexico.He studied the canyon until 1935, and several Chaco scholars worked for or with him during this period, including Gordon Vivian (father of R. Gwinn Vivian), Edwin Ferdon, Paul Reiter, and Florence M. Hawley.Hewett's methods have been widely criticized, and his work judged to have been substandard, particularly in comparison to the work done by the National Geographic Project.