Aeronautics, Commercial--Law and legislation--United States 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 Armenian massacres, 1894-1896 1 Armories--Pennsylvania 1 more ... Charitable Organizations--Philadelphia 1 Charities--Pennsylvania--Philadelphia 1 College trustees--United States 1 Cuba--1890-1910 1 Democratic Party (U.S.) 1 Department stores--Pennsylvania--Philadelphia 1 Depressions--1929--Pennsylvania--Philadelphia 1 Diplomatic and consular service, American 1 Disaster Relief--National and International 1 Foreign Relations--United States--Europe--1935-1944 1 Governments in exile 1 Gratz, Simon, 1840-1925 1 Hotels--Pennsylvania--Philadelphia 1 Insurance companies--United States 1 Jews, American 1 Johnstown Flood 1 Medical education 1 Mortgage banks--United States 1 Motion picture theaters--Pennsylvania--Philadelphia--1920-1940 1 Nazi propaganda--Poland 1 Pennsylvania--History 1 Pennsylvania--History--1775-1865 1 Pennsylvania--History--Colonial period, ca. 1600-1775 1 Pennsylvania--Politics and government 1 Philadelphia (Pa.)--City planning 1 Poland--Foreign relations--United States--Sources 1 Political conventions--Pennsylvania--Philadelphia 1 Poverty, Alleviation of--19th and 20th Century 1 Presidents election 1 Quaker women 1 Quakers 1 Radio stations--United States 1 Railroad equipment industry--United States 1 less ...