Electronic index to microfilm of Special Collections, census records, Calvert papers, church records, and some government records. Database identified as SPECCOLM. Microfilm includes church records, state documents, 1798 federal direct tax, marriage records, published genealogies, census records, private manuscript materials, military records, municipal records, published books, architectural drawings, maps and atlases, newspapers, state records, the Latter Day Saints' catalog entries for Maryland, cemetery records, and surveyors' field books. Entries give title, description, dates, and citation. Accessible by title, topic, agency, name, placename, and date.