- Marx, Karl, 1818-1883 (2)
- Aveling, Edward Bibbins, 1851-1898 (1)
- Bober, M. M. (Mandell Morton), 1891- (1)
- Burns, Emile, 1889- (1)
- Engels, Friedrich, 1820-1895 (1)
- Frowein, S. H. (Stephen Horst) (1)
- Marx, Karl (1)
- Moore, Samuel (1)
- Shackle, G. L. S. (George Lennox Sharman), 1903-1992 (1)
- Wicksell, Johan Gustaf Knut, 1851-1926 (1)