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 Astronomy Educa (1) Exopla (1) (-) Heliophy (1) State (-) MD (1) Facet State City Baltimore (1) Bethesda (1) Columbus (1) Gaithersburg (1) Laurel (1) San Marcos (1) Silver Spring (1) (-) Greenbelt (1) Facet City Membership Class Full Member (1) Facet Membership Class Division SPD (9) DPS (7) HEAD (6) LAD (4) (-) HAD (1) Facet Division Showing 1-1 of 1 results William Bridgman Full Member Affiliation State/Province MD Country United States