Railroad--Construction 2 Slavery 2 American wit and humor--Periodicals 1 Banking law--United States--History 1 Books and Bookselling--19th Century 1 Centennial Exhibition (1876 : Philadelphia, Pa.) 1 Compromise of 1850 1 more ... Department stores 1 Ethnic groups--Comic books, strips, etc 1 Ethnic groups--United States--Attitudes 1 Gettysburg, Battle of, Gettysburg, Pa., 1863 1 Lumber trade--Pennsylvania--New Hope 1 Medical Publications--19th century 1 Medical Publications--20th century 1 Mexican War, 1846-1848 1 Mexican War, 1846-1848--Campaigns--Maps 1 Minorities--United States--Attitudes 1 New Deal, 1933-1939--Caricatures and cartoons 1 Philadelphia Public Schools 1 Philadelphia Views--19th century 1 Philadelphia Views--20th century 1 Philadelphia. Girls' High School 1 Political cartoons--18th century 1 Political cartoons--19th century 1 Political cartoons--20th century 1 Political cartoons--United States 1 Presidents--United States--Election--1864--Caricatures and cartoons 1 Presidents--United States--Election--1868--Caricatures and cartoons 1 Publishers and Publishing--Pennsylvania--Philadelphia--19th century 1 Publishers and Publishing--Philadelphia--20th Century 1 Publishing and Publishers--Philadelphia--18th century 1 Railroads--Management 1 Reconstruction (U.S. history, 1865-1877)--Caricatures and cartoons 1 Roads--Design and construction 1 Scott, Dred 1 Shipping--Pennsylvania--Philadelphia 1 Shipping--Pennsylvania--Philadelphia--19th Century 1 Spouses--Correspondence--19th century 1 Stereotypes (Social psychology)--History 1 Topographical surveying--United States 1 less ...