4 novembre 2005
John Komlos, « Height of Free African Americans in Maryland, 1800-1864 », Inter-university Consortium for Political and Social Research, ID : 10.3886/ICPSR03422.v1
This data collection was designed to ascertain the nutritional status of free African Americans in Maryland during the early to mid-19th century. These data supply information on the person's age, sex, year of birth, height, county of birth, county of residence (where the Certificate of Freedom was granted), complexion, and whether the person was born free or was manumitted after birth. In some cases, the county in which the person grew up is also documented.