Lat/Long: 39.4667, -76.6500
Baltimore was (and remains) the largest city in Maryland and was one of the nation's leading seaports during the 19th Century and one of America's five largest cities through the Civil War. During the war, the city's substantial secessionist population led to the Baltimore Riot of April 19, 1861, and the Union maintained a significant military presence in the city.
Clayton Colman Hall, ed., Baltimore: Its History and its People, 2 vols. (New York and Chicago: Lewis Historical, 1912) 1:9-237.