After an illuminating account of the history of Patrick and Henry counties, which occupies the first third of the book, the authors turn their attention to genealogy, providing authoritative histories of no fewer than 110 families. The genealogies generally begin with the first settler in either Patrick or Henry County and proceed to enumerate descendants in several generations, providing incidental detail according to the materials available. In addition to the remarkable collection of genealogies, the book also contains transcriptions of important genealogical source materials, such as the Patrick and Henry land grants and patents registered in the old Land Office in Richmond.