In the early 1800s, nearly 25 per cent of all females in the United Kingdom were called Mary. If you add to these many Marys the crushing numbers of Elizabeths, Sarahs, Janes and variform Anns (Nancys, Nans and Hannahs), you would have the Christian names of something close to 80 per cent of the female population. There was a similar pattern with Johns. About one fifth of all males in the UK between 1800 and 1850 were christened John and the vast majority of the other men and boys around at the time were Joseph, James, Thomas or William.

LRB 23 September 2010 | PDF Download