1. I. Grattan-Guinness, ‘A mathematical union: William Henry and Grace Chisholm Young’, Annals of Science, 29 (2) (1972), 105–186 (pp. 140–141).
2. For example see Graham Sutton, ‘The centenary of the birth of W.H. Young’, Mathematical Gazette, 59 (1963), 17–21.
3. Genevieve Lloyd, The Man of Reason: ‘Male’ and ‘Female’ in Western Philosophy (London: Methuen, 1984), p. 76.
4. Fernanda Perrone, ‘Women academics in England, 1870–1930’, History of Universities, 12 (1) (1993), 339–367 (p. 339).
5. Helena Swanwick, ‘Memoir of Girton, 1882–1885’, in Strong-Minded Women and Other Lost Voices from Nineteenth-century England, ed. by Janet Murray (Harmondsworth: Penguin, 1992), pp. 239–242 (p. 240).