John preached in the revivalistic style of Calvinism that his father was known for as part of the First Great Awakening. He continued to serve the parishes in New Jersey that his father had served at Raritan, Millstone, and North Branch. John lived in the Old Dutch Parsonage in Somerville where he served the three local congregations until his death. He took in students and a room in the house served as a Dutch Reformed religious seminary. This center of education was a forerunner of the New Brunswick Theological Seminary and Queen's College, which later developed into Rutgers University.The Founding of Queen's College, From "Seminary of Learning" to Public Research University: A Historical Sketch of Rutgers University, by Thomas J. Frusciano, University Archivist, Rutgers University Libraries. Retrieved February 6, 2012.Library History , Raritan Public Library. Retrieved February 6, 2012. John died on September 5, 1754 and was buried at the Old Somerville Cemetery.
