History 345 Families 193 Friendship 87 Schools 87 African Americans 76 Orphans 70 World War, 1939-1945 58 more ... Brothers and sisters 50 Frontier and pioneer life 50 Jews 49 Magic 49 Dogs 38 Farm life 37 Indians of North America 36 Folklore 35 Sisters 33 Death 32 Interpersonal relations 31 Survival 31 Animals 30 Fathers and sons 30 Mothers and daughters 27 Race relations 26 Brothers 25 Mexican Americans 25 Social life and customs 24 Adventure stories 23 Conduct of life 23 Slavery 23 Country life 21 less ...