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 Facet State City Annapolis (2) Baltimore (7) Bethesda (3) Catonsville (1) Chevy Chase (1) College Park (2) Columbia (1) Elkton (1) Ellicott City (1) Gaithersburg (1) Greenbelt (2) Kensington (1) Laurel (1) Mountain View (1) Rockville (1) San Marcos (1) Stevenson (1) Takoma Park (1) Trenton (1) Washington (3) Facet City Membership Class Facet Membership Class Division DPS (3) DDA (2) HEAD (2) SPD (1) Facet Division