John Milton (1801). “The Poetical Works of John Milton: With the Principal Notes of Various Commentators. To which are Added Illustrations, with Some Account of the Life of Milton”, p.439
John Bunyan (1813). “The Pilgrim's Progress, from this World, to that which is to Come ... with Notes, Interesting Memoirs of the Author, Character of the Pilgrim's Progress, and a Key to the Whole Work ... by Various Eminent Men”, p.1