History 195 Merchants 156 Commerce 85 Merchants--Pennsylvania--Philadelphia--18th century 70 Merchants--Pennsylvania--Philadelphia--19th century 40 Shipping--Pennsylvania--Philadelphia--18th century 37 International trade--18th century 34 more ... Merchant marine 34 Politics and government 32 Merchant mariners 29 Fraternal organizations 27 Description and travel 26 Biography 24 Shipping--Pennsylvania--Philadelphia--19th Century 20 Estate administration--19th century 19 Histoire 19 International trade--19th century 19 Social conditions 19 Tariff 19 Economic conditions 16 Jews 16 Colonies 15 Estate administration--18th century 15 Merchants, American 15 Philanthropists 15 Receipt books--18th century 14 Slavery 14 Almanacs, American 13 Commerce--West Indies--18th century 13 Legislators 13 Social life and customs 13 Streets 13 Accounts--19th century 12 Businessmen 12 Commerce--Philadelphia--19th century 12 Merchants--Dry Goods--Philadelphia--18th century 12 Sources 12 Accounts--18th century 11 Banks and banking 11 Missions and charities 11 less ...