They are completely Soundexed and thus searchable by name as well as date. Genealogical Microfiche University Microfilms has created a series on genealogy and local history. The materials in this series include genealogies, genealogical periodicals, local histories, and primary sources such as vital records. The guidebook contains indexes by author, title, geographic location, and family name. In various books in the Maryland Department, death and marriage dates can be researched.
Indexes vary in their depth, but they can be a good source for information.
There are other sources also, such as church records, settlers lists, and cemetery records. Marriages and Deaths from the Maryland Gazette 1727-1839. Genealogical Publishing Co., Baltimore, 1979. Obert, Rowene T. Baltimore, Maryland, City and County Marriage Licenses 1777-1799. Genealogy Shoppe, Salt Lake City, 1975.