Veterans Brothers 6 World War, 1914-1918 6 World War, 1939-1945 6 Fathers and sons 4 Infants switched at birth 4 Twins 4 Vietnamese Conflict, 1961-1975 4 English fiction 3 Adult children of aging parents 2 Cover letters 2 Employment 2 Extinct cities 2 Families of military personnel 2 Girls' schools 2 Grandfathers 2 Inheritance and succession 2 Investigation 2 Jungles 2 Local government 2 Mental health 2 Motherless families 2 Murder 2 Parent and adult child 2 Poor 2 Princesses 2 Psychology 2 Resumes (Employment) 2 Retired military personnel 2 Schools 2