Anna O. Shepard

[1] She conducted postgraduate work in optical crystallography at Claremont College in 1930 and later studied chemical spectroscopy in 1937 at New York University.

[1] 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.

[1] Shepard's papers and ceramic collections are held in the Anthropology Section at the University of Colorado Museum of Natural History.

Anna O. Shepard
Maya frog vessel with plumbate glaze. From Guatemala, Coastal Piedmont, 900-1200 AD.