Example image of eyePlorer eyePlorer map for 'Francis Thomas': 1799 1876 February 3 Governor of Maryland January 22 Maryland Maryland's 4th congressional district Maryland's 5th congressional district Maryland's 6th congressional district Maryland's 7th congressional district United States House of Representatives Annapolis, Maryland Frederick County, Maryland South Mountain (Maryland and Pennsylvania) St. John's College (United States) Maryland House of Delegates Speaker of the House March 3 March 4 United States House Committee on Armed Services United States House Committee on the Judiciary Chesapeake and Ohio Canal William Cost Johnson President of the United States Slavery National Union Convention Pennsylvania Philadelphia 1872 1875 July 9 March 25 Peru Locomotive Cumberland, Maryland Maryland Constitution of 1864 Chelsea, London