Authors, American 14 History 10 Authors, English 8 Journalists 7 Actors 6 Correspondance 5 Women 5 more ... Musicians 4 Poets, American 4 Poets, English 4 Presidents 4 World War, 1939-1945 4 Artists 3 Authors, French 3 Authors, German 3 Feminism 3 Love-letters 3 Marriage 3 Missionaries 3 Physicians 3 Air pilots 2 Authors 2 Biography 2 Correspondence 2 Daughters 2 Interpersonal relations 2 Kings and rulers 2 Mothers 2 Mothers and daughters 2 Motion picture producers and directors 2 less ...