This is an essential source book for anyone researching immigrant ancestors. Washington County was in the middle of two major migratory routes: the National Road and the southern access to the Valley of Virginia. The naturalization documents include the ancestor's name, date of birth, place of birth, date and port of emigration from Europe and immigration into this country, as well as witnesses. Records are from 1798 to 1879. This work abstracts text of 1700 courthouse documents and provides an alphabetical listing of all immigrants plus an index of full witness names.