Merchants--Pennsylvania--Philadelphia--18th century 70 Merchants--Pennsylvania--Philadelphia--19th century 40 Merchants 26 History 13 International trade--18th century 13 Commerce--West Indies--18th century 7 Shipping--Pennsylvania--Philadelphia--18th century 7 more ... Accounts--18th century 6 Commerce--18th century 5 Merchants--Pennsylvania--18th century 5 Trade--England--18th Century 5 Commerce--Philadelphia--18th century 4 Trade--West Indies--18th century 4 Commerce 3 Fur trade--Philadelphia--18th century 3 International trade--19th century 3 Philadelphia (Pa.)–-Merchants-–18th century 3 Receipt books--18th century 3 Shipping--18th century 3 Social Life and Customs--18th century 3 Account books 2 Biography 2 Business 2 Business enterprises 2 Commerce--Philadelphia--19th century 2 Description and travel 2 Diaries 2 Economic conditions 2 Equipment and supplies 2 Estate administration--19th century 2 Ethnic groups 2 Iron manufacturing--Pennsylvania--18th century 2 Lithuanian Americans 2 Merchants--18th century 2 Merchants--Pennsylvania--Philadelphia 2 Merchants--Pennsylvania--Philadelphia--History 2 Philadelphia (Pa.)–-Merchants-–19th century 2 Restaurateurs 2 Ships--Equipment and supplies--18th century 2 Social conditions 2 less ...