📗 Trumbull (1830-1903) was an American clergyman, writer, editor, and pioneer of the Sunday School Movement. Poor health kept him from formal education past the age of 14, though he was later awarded honorary degrees from Yale, Lafayette College and the New York University. In 1852 he joined the Congregationalist Church and became the superintendent of a mission Sunday-school under the Connecticut State Sunday School Association and by 1858, four years after his marriage, had become the state Sunday-school missionary for Connecticut. In 1862 he was ordained a Congregational minister and served as a chaplain during the American Civil War. Following his capture by the Confederates he spent over a year as a prisoner-of-war, eventually rejoining his regiment after being exchanged and then serving until it was mustered out of service in August 1865. His military career continued in various capacities before he took on the role of New England secretary for the American Sunday-school Union, and in 1875 he and his family moved to Philadelphia where he became editor of the Sunday School Times, a position he held until his death. He was the author of 38 books and this work, based on his own experiences as a father and grandather, was published in 1890.