Butler, Jon. Religion in Colonial America. New York: Oxford University Press, 1999.
This book described the development of the various organized religions that existed in America from the period of 1500 to the present. The book attempts to dispel the idea that the Puritans were the only religion that influenced the development of early American political thought and that other religious philosophies played a significant role as well. The book explores the role that other religions such as Roman Catholics, Judaism, and other Protestant denominations played. The failure of the Puritans to achieve their goal of instituting their religious philosophy throughout the Colonies is examined as is their influence on how the doctrine of the separation of Church and state was ultimately adopted.
Clarke, P.H. "Adam Smith, Stoicism and religion in the 18th Century." History of the Human Services (2000): 49-72.
This article examines how Adam Smith was affected by the influence of Stoicism and religion but through an examination of their effect on Smith their influences, by extension, are measured on other political philosophers of the time. Religious philosophy of the time was in a period of transition. The Enlightenment had emerged and reason had become the guiding principle and religious philosophers were rushing to combine the orthodox ideology of traditional religion with the ideas of the Enlightenment. In this book, this process is explained and how it affected philosophers in the 18th century.