Ancestry.com. National Archives Guide to Genealogical Research [database on-line]. Provo, UT, USA: The Generations Network, Inc., 1997.Original data: United States, National Archives and Records Administration. Guide to Genealogical Research in the National Archives. Washington, D.C.: National Archives Trust Fund Board, 1985.
The United States National Archives holds historically significant records from all three branches of government. These records include, but are not limited to, census schedules, military pension applications, land records, and immigration material. Some of these records are immensely helpful to genealogists. This guide to research in the Archives, in addition to describing many holdings within the collection, points the ancestral researcher to many of the genealogically important areas of the collection. Often the researcher can find records which reveal relationships between generations of ancestors, either given or implied, through the aid of the Archives.