History 381 Frontier and pioneer life 151 Indians of North America 89 Description and travel 71 History and criticism 65 In literature 60 American literature 49 Mais ... Social life and customs 47 Women 45 Discovery and exploration 42 Travel 40 Pioneers 39 Literature 36 Authors, American 30 Art, American 27 Cowboys 26 Discoveries in geography 26 Social conditions 26 Territorial expansion 26 Exhibitions 25 Women pioneers 25 Womyn 24 Manners and customs 23 Western stories 23 Overland journeys to the Pacific 22 Outlaws 21 Women authors 21 Social aspects 20 African Americans 18 Explorers 18 menos ...