1. William Rogers (1751–1824) was born in Newport, Rhode Island, but moved to Philadelphia where, in 1772, he was ordained as a Baptist minister. He served as a chaplain for the Continental army during the American Revolution, and in 1789 he was appointed professor of oratory and English at the College and Academy of Philadelphia. He also held the same position at the University of Pennsylvania, 1792–1812 (William B. Sprague, Annals of the American Pulpit [1857–69; 9 vols.; New York, 1969 reprint], 6:145–47).

2. Thomas Baldwin (1753–1826) was born in Connecticut and in the 1780s had served as an itinerant Baptist preacher throughout New Hampshire and Vermont. In 1790 he accepted a call to the ministry of the Second Baptist Church in Boston where he became one of the most prominent and prolific Baptist leaders in New England. He was the author of more than forty tracts and sermons as well as being the editor of the Massachusetts Baptist Missionary Magazine. In 1810 he published his most important theological work, A Series of Letters. In Which the Distinguishing Sentiments of the Baptists Are Explained and Vindicated, in defense of the practice of adult immersion (ibid., 6:208–13).