Columbia subject headings:
U.S. Customs Service--Anniversaries, etc.
U.S. Customs Service--Officials and employees.
Harvard subject headings:
Harbors--Pennsylvania--Philadelphia.
U.S. Customs Service--Anniversaries, etc.
U.S. Customs Service--Officials and employees.
Princeton subject headings:
Harbors--Pennsylvania--Philadelphia.
U.S. Customs Service--Anniversaries, etc.
U.S. Customs Service--Officials and employees.