1. MacDonald, Ramsay, 1, 2
2. Macfarlane, Colonel, 1
3. Mackeson, Tony, 1
4. Maclean, Fitzroy, 1, 2, 3, 4, 5
5. Mafalda, Princess, 1, 2
6. Maisky, I. M. (Soviet Ambassador), 1, 2
7. Makinen, Hugo, 1
8. Mamblas, Conde de, 1
9. Mandel, M., 1
10. Mannerheim, General, 1, 2, 3, 4
11. Margesson, Rt. Hon. Captain David, 1, 2, 3
12. Marie of Roumania, Queen, 1
13. Masaryk, Jan, 1
14. Masaryk, President, 1
15. Matthews, Herbert, 1, 2
16. Matusinski, M., 1, 2
17. Maxwell, Terence, 1
18. Maxwell, Mrs. Terence, 1
19. Meidner, Carl, 1
20. Mencken, Arthur, 1
22. Mendl, Sir Charles, 1, 2, 3
23. Merry del Val, Pablo, 1, 2, 3, 4
24. Metcalfe, Lady Alexandra, 1
25. Metcalfe, Major E. D., 1, 2, 3
26. Miller, Webb, 1, 2, 3, 4
27. Mitford, Hon. Tom, 1, 2, 3, 4, 5
28. Mitford, Hon. Unity, 1, 2, 3
29. Montellano, Duc de, 1
30. Montellano, Duchesse de, 1
31. Mosley, Lady, 1
32. Mowrer, Edgar, 1
33. Muggeridge, Malcolm, 1
34. Munck, Ebbe, 1, 2
35. Murray, Fred, 1, 2
36. Mussolini, Benito [Reference to personal interview is in italics], 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12