African Americans 5 Population 4 Appropriations and expenditures 3 Arts 3 Census districts 3 Economic aspects 3 Finance, Public 3 more ... Parks 3 Occupations 2 Registers of births, etc 2 Statistics 2 AIDS (Disease) 1 Acquired Immunodeficiency Syndrome 1 African American criminals 1 Almanacs, American 1 American newspapers 1 Attitudes 1 Census, 13th, 1910 1 Commuting 1 Criminal statistics 1 Economic conditions 1 Education 1 Fire prevention 1 Genealogy 1 Health surveys 1 History 1 Housing 1 Jews 1 Manners and customs 1 Medical personnel 1 Mœurs et coutumes 1 Philadelphia 1 Population density 1 Prevention 1 Printing industry 1 Psychological aspects 1 Public opinion 1 Publishers and publishing 1 Ridesharing 1 Social conditions 1 less ...