L. John van Til, Liberty of Conscience: The History of a Puritan Idea (Presbyterian & Reformed Publishing 1992).
From the publisher: [This book] [s]hows the development of the idea of liberty of conscience from the English Puritan William Perkins to the First Amendment two hundred years later.
A critical book review by George M. Waller can be found in The Journal of American History, Vol. 60, No. 3 (Dec., 1973), pp. 776-777.