David W. Bartlett, Abraham Lincoln (1860). “The Life and Public Services of Hon. Abraham Lincoln: With a Portrait on Steel. To which is Added a Biographical Sketch of Hon. Hannibal Hamlin”, p.190
Richard Chenevix Trench (1867). “On the Study of Words Lectures Addressed (originally) to the Pupils at the Diocesan Training-school, Winchester by Richard Chenevix Trench”, p.24