California--Description and travel--19th Century 5 California--Gold Rush--1849 3 Anti-Catholicism--19th century 1 Calhoun, John C., 1782-1850 1 California--History--19th century 1 California--Mexican-American War 1 Courtship and marriage--19th Century 1 more ... Death and dying--19th century 1 Europe--Description and travel 1 Family life--Personal correspondence--19th century 1 Frontier and pioneer life--American West--19th century 1 Health and hygiene 1 Historians--19th century 1 International trade--18th century 1 International trade--19th century 1 Kansas--History--19th century 1 Lawyers--Pennsylvania--19th century 1 Mayo family 1 Mexico--History--19th century 1 Native Americans--White perceptions of 1 Oregon--Description and travel--19th century 1 Panama--Description and travel--19th century 1 Pennsylvania--Description and travel--19th century 1 Richards, Howard 1 Texas--History--19th century 1 Transportation--Railroad--Descriptions--19th century 1 United States--History--Civil War, 1861-1865--Homefront 1 United States--History--Civil War, 1861-1865--Personal Correspondence 1 United States--History--Civil War, 1861-1865--Personal narratives 1 United States--History--Mexican-American War--Pictorial Representations 1 United States--Politics and government--19th century 1 United States--Territorial Expansion 1 Vice Presidents--United States 1 less ...