Member Directory The AAS maintains a membership directory to facilitate member interaction and to support the conduct of official Society business. Search directory for: Filter Results By Clear Filters Type of Science State (-) AR (1) Facet State City Mexico City (1) (-) Fayetteville (1) Facet City Membership Class F (1) Facet Membership Class Division (-) HEAD (1) Facet Division Showing 1-1 of 1 results Bret Lehmer F Affiliation University of Arkansas, Fayetteville State/Province AR Country United States