1. Some Evidence on English and American Wage Rates, 1790–1830;Adams;Journal of Economic History,1970
2. Education in the Forming of American Society;Bailyn,1960
3. Studying Literacy at the Community Level: A Research Note;Beales;Journal of Interdisciplinary History,1978
4. Human Capital;Becker,1980
5. Book of Redemptioners, 1785–1804. Manuscript held at the Pennsylvania Historical Society, Philadelphia.