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 (-) MD (2) Facet State City Bethesda (1) Columbia (1) Jessup (1) Laurel (1) Rockville (1) Silver Spring (1) (-) Edgewater (2) Facet City Membership Class (-) Full Emeritus Member (2) Facet Membership Class Division (-) DDA (2) Facet Division Showing 1-2 of 2 results Marion Zacharias Full Emeritus Member Affiliation Retired State/Province MD Country United States Norbert Zacharias Full Emeritus Member Affiliation Retired State/Province MD Country United States