An 1833 Maryland state law required masters of vessels arriving at Baltimore’s port to submit lists of passengers to the mayor. These “city lists,” covering September 1833 to October 1866, include the age and occupation of each passenger. They can help fill in gaps in the passenger lists submitted to the customs office in Baltimore, which have been microfilmed by the National Archives <archives.gov
> (as Passenger Lists of Vessels Arriving at Baltimore, 1820-91) and are available on Ancestry.com
>. The Records Management Office of the Department of Legislative Reference in Baltimore now holds the city lists.