Museums--Pennsylvania--Philadelphia--20th century 5 Advocacy organizations--Philadelphia--20th century 1 Affirmative action programs--Government policy--United States--History--20th century 1 Built environment--Pennsylvania--Philadelphia--20th century 1 Business and manufacturing--Pennsylvania--Philadelphia--20th century 1 Business mergers and acquisitions--20th century 1 Business--History--Pennsylvania--Philadelphia--20th century 1 more ... Campaign management--United States 1 City planning and development--Pennsylvania--Philadelphia--20th century 1 City planning--Pennsylvania--Philadelphia--20th century 1 Consumer activism--20th century 1 Cultural organizations--Philadelphia--20th century 1 Disaster planning 1 Education--20th century 1 Elections--Pennsylvania 1 Elections--Pennsylvania--Philadelphia 1 Elections--United States--Costs 1 Elections--United States--History 1 Elections--United States--Planning 1 Ethnic groups 1 History 1 Lawyers--Pennsylvania--Philadelphia--20th century 1 Lobbying 1 Municipal government--Pennsylvania--Philadelphia 1 Municipal officials and employees--Pennsylvania--Philadelphia 1 Museums 1 Museums--Law and legislation--United States 1 Museums--Pennsylvania 1 Music--Manuscripts--19th century 1 Pennsylvania--Politics and government--20th century 1 Philadelphia (Pa.)--City government--20th century 1 Philadelphia (Pa.)--Politics and government--20th century 1 Philadelphia (Pa.)--Tourism--20th century 1 Political campaigns--Law and legislation--United States 1 Political campaigns--Pennsylvania 1 Politics and government--Pennsylvania--Philadelphia--20th century 1 Public history 1 Social reformers--Pennsylvania--Philadelphia 1 Temple University--American Studies Department 1 United States--Politics and government--20th century 1 less ...