In 1912, the B&amp;O remodeled the central waiting room, enlarging it and adding oak panelling with marble wainscoting for the Democratic National Convention, held in Baltimore that year. The Annapolis &amp; Baltimore Short Line Railroad also used Camden Station for its trains to Annapolis, Maryland, beginning in 1887. Except for an interval between 1921 and 1935, when the successor Washington, Baltimore and Annapolis Electric Railway (WB&amp;A) used a separate station at Howard and Lombard Streets, frequent electric interurban trains to Maryland's capitol served Camden station until February 5, 1950, when WB&amp;A successor Baltimore and Annapolis Railroad replaced rail passenger service with buses.