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Tyack, D. 1966 'Kingdom of God' and the common school: Protestant ministers and the educational awakening in the West. Harvard Educational Review 36:447-69. 1970 Onward Christian soldiers: Religion in the American common school. Pp. 212-55 in P. Nash (ed.), History and Education. New York: Random House. 1974 The One Best System. Cambridge, MA: Harvard University Press. U.S. Bureau of the Census 1976 Historical Statistics of the United States, Colonial Times to 1970, Bicentennial Edition, Parts I and II. Washington, D.C.: U.S. Government Printing Office. 1974 Current Population Reports, Series P-25, No. 519. Washington, D.C.: U.S. Government Printing Office. U.S. Bureau of Economic Analysis 1973 Long Term Economic Growth, 1860-1970. Washington, D.C.: U.S. Government Printing Office.
Ronald D'Amico (Sun,) studied this question.