Record Data Place Unit Type City or Town Containing Unit Harford County, MD Events Date Type 04/19/1861 - 04/20/1861 Marylanders in sympathy with the South burn railroad bridges linking Philadelphia with Washington DC Battles/Soldiers 11/26/1866 New railroad bridge across the Susquehanna speeds up the journey from Philadelphia to Washington, DC. Business/Industry People Birthplace of Rodgers, John Documents Date Title 04/29/1861 Chicago (IL) Tribune, “Washington Safe,” April 29, 1861 Images