She pioneered the study of ceramic petrography in the United States, determining the provenance of painted vessels from sites throughout the Southwest. She demonstrated that Ancestral Puebloans, specifically women, produced pottery on a large scale for trade throughout the region.[2] She also analyzed Maya blue pigments, as well as glazed plumbate pottery from the Postclassic period in Mexico.
Her book, Ceramics for the Archaeologist, published in 1956, still serves as a comprehensive reference for archaeologists today.[1]