Professional Organizations

• Art Archaeology and Conservation Science Division, American Ceramic Society . 11/01/2021 - 10/31/2022. Position : Chair.
• Continental Scientific Drilling Division, Geological Society of America. 10/01/2020 - 09/30/2022. Position : Vice-Chair.
• Natural Pozzolans Association. 12/01/2017 - present. Position : Scholar Member.
• American Ceramic Society. 01/31/2013 - present. Position : Fellow, Art, Archaeology and Conservation Science Division (AACS).
• American Concrete Institute . 01/31/2009 - present. Position : ACI Committee 204, Associate Member, Natural Pozzolans.
• Archaeological Institute of America. 01/31/2006 - present. Position : Member.
• American Geophysical Union . 01/31/1980 - present. Position : Member.
• Geological Society of America. 01/31/1976 - present. Position : Member.