(1) Kenneth Morgan, Slavery and Servitude in Colonial North America: A Short History (New York: New York University Press, 2000), 22, quoting Lois Green Carr, 'Daniel Clocker's Adventure: From Servant to Freeholder' in Ian K. Steele and Nancy L. Rhoden (eds), The Human Tradition in Colonial America (Wilmington, DE: Scholarly Resources, Inc., 1999), 97-118.
(2) Russell R. Menard, "From Servant to Freeholder: Status Mobility and Property Accumulation in Seventeenth-Century Maryland," The William and Mary Quarterly, 3rd Ser., Vol. 30, No. 1 (Jan 1973), 37-64, www.jstor.org.
(3) Deborah E. Hamer, "America: A Promised Land? Indentured Servants in the Colonial Chesapeake," 134, Paper for American Labor History (History 157a), Brandeis University, 2005.