Professional Organizations
- Registry of Professional Archaeologists (USA). 06/2010 - present. Position : Member.
- Australian Academy of the Humanities . 11/2006 - present. Position : Honorary Fellow.
- National Academy of Sciences (USA) . 05/2006 - present. Position : Member.
- American Association for the Advancement of Science. 08/1967 - present. Position : Fellow.
- Society for American Archaeology. 05/1967 - present. Position : Member.