Frontier and pioneer life 1,105 History 743 Indians of North America 142 Social life and customs 137 Pioneers 121 Women pioneers 96 Social conditions 83 more ... Frontier and pioneer life in literature 79 Description and travel 76 Manners and customs 75 History and criticism 71 Race relations 61 Ethnic relations 58 Territorial expansion 48 Women 44 In literature 42 American literature 38 Social aspects 38 Travel 38 Outlaws 36 Politics and government 35 Gold discoveries 34 Wars 34 Gold mines and mining 33 Historiography 33 Land settlement 31 Colonies 30 Womyn 27 History, Military 26 Overland journeys to the Pacific 26 less ...