History Family members 157 Families 145 Family life 131 African Americans 106 World War, 1939-1945 90 Orphans 89 more ... Friendship 88 Jews 70 Friendships 59 Conduct of life 50 Indigenous peoples 48 Siblings 46 Mystery and detective stories 45 Adventure and adventurers 44 Frontier and pioneer life 43 Schools 43 Slavery 43 Race relations 39 Adventure stories 37 Middle Ages 36 Survival 36 Sisters 33 Identity 30 Children 29 Coming of age 28 Holocaust, Jewish (1939-1945) 28 Magic 28 Sex role 26 Soldiers 26 less ...