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 AZ (1) MD (20) Facet State City Arecibo (1) Erie (1) Philadelphia (1) Pittsburgh (1) Selinsgrove (1) University Park (4) Washington (1) Facet City Membership Class Full Emeritus Member (1) Facet Membership Class Division Facet Division