http://pec.lib.wvu.edu/record/P63161856An Address by Hon. John L. Dawson, before the Washington and Union L. Societies of Washington College : delivered on Wednesday evening, June 18th, 1856.Pamphlet. Digital copy available in: Historic Pittsburgh General Text Collection.Dawson, John L. (John Littleton), 1813-1870.United States--Civilization.United States--History.14256