1. Migration and the Family in Colonial New England: The View from Genealogies;Adams;Journal of Family History,1984
2. To Their Own Soil: Agriculture in the Antebellum North;Atack,1987
3. Slaves without Masters: the Free Negro in the Antebellum South;Berlin,1974
4. History of Agriculture in the Northern United States, 1620–1860;Bidwell,1925
5. Westward Expansion;Billington,1982