The author was Reverend John Lamott, Professor of Church History at Mount St. Mary Seminary in Cincinnati. His approach to this history was to cover the subject in three parts; starting with a chronological narrative that begins with early Church leaders in Ohio. He followed that with a geographical portion that covers the boundaries of the Cincinnati diocese, showing how it was divided and re-divided into four dioceses, with Cincinnati becoming in 1850 an archdiocese. The last part is an institutional history, stressing the role of the Church in promoting education. There is a very substantial bibliography in the front containing many books on Ohio and Cincinnati history as well as Church history.