History 329 Frontier and pioneer life 172 Indians of North America 91 Description and travel 60 In literature 51 History and criticism 48 Discovery and exploration 43 Wars 42 Pioneers 41 Social life and customs 34 Western stories 28 Territorial expansion 27 Authors, American 25 Explorers 24 Travel 24 American literature 23 Social conditions 21 Criticism and interpretation 18 Overland journeys to the Pacific 18 Cowboys 17 Military life 17 Women 16 Economic conditions 14 Government relations 14 Outlaws 14 Railroads 14 Women pioneers 13 Soldiers 12 African Americans 11 Homes and haunts 11