The Port of Philadelphia Pennsylvania Baggage Lists were maintained by officials from 1800 to 1820. These Baggage Lists help fill in gaps for pre-1820 ships passenger lists. They are lists of passengers and their luggage on board ships.
Some Philadelphia Baggage Lists can be found online at OTE, a sister site of Olive Tree Genealogy
The online lists include images of the actual manifest and a transcription of the names of the passengers on board. Remember that if your ancestor had no luggage, his or her name will not be found on these lists.