Frontier and pioneer life History 611 Indians of North America 135 Pioneers 116 Social life and customs 105 Women pioneers 55 Description and travel 51 more ... Wars 50 Cowboys 49 Race relations 43 Social conditions 38 Ranch life 37 Ethnic relations 36 Outlaws 35 Territorial expansion 33 Women 31 Families 28 Gold discoveries 27 Overland journeys to the Pacific 27 Social aspects 27 Military life 26 Discovery and exploration 25 Cattle trade 24 Politics and government 23 African Americans 19 Historiography 19 Violence 19 Crime 18 Government relations 17 History, Military 17 less ...