Aeronautics, Commercial--Law and legislation--United States 1 African Americans--History--Negro Education--Late 19th Century 1 Airports--Pennsylvania 1 Ambassadors--United States 1 Ambassadors’ spouses 1 Ancient Arabic Order of the Nobles of the Mystic Shrine for North America 1 Armenia--History 1 more ... Armories--Pennsylvania 1 Charities--Pennsylvania--Philadelphia 1 College trustees--United States 1 Democratic Party (U.S.) 1 Department stores--Pennsylvania--Philadelphia 1 Depressions--1929--Pennsylvania--Philadelphia 1 Diplomatic and consular service, American 1 Foreign Relations--United States--Europe--1935-1944 1 Forests and forestry 1 Governments in exile 1 Hotels--Pennsylvania--Philadelphia 1 Indian Rights Association 1 Insurance companies--United States 1 Jews, American 1 Mortgage banks--United States 1 Motion picture theaters--Pennsylvania--Philadelphia--1920-1940 1 Nazi propaganda--Poland 1 Pennsylvania--Politics and government 1 Philadelphia (Pa.)--City planning 1 Philippines--Annexation to United States 1 Poland--Foreign relations--United States--Sources 1 Political conventions--Pennsylvania--Philadelphia 1 Presidents election 1 Radio stations--United States 1 Railroad equipment industry--United States 1 Real estate business--Pennsylvania 1 Real estate business--Records and correspondence 1 Sanitation--Pennsylvania--Philadelphia 1 Savings and loan associations--Pennsylvania--Philadelphia 1 Stores, retail--Pennsylvania--Philadelphia 1 Transportation--Pennsylvania 1 United States Army 1 United States--Foreign relations--Poland--Sources 1 less ...