I’ve been reading two biographies of Mary Wollstonecraft: Janet Todd’s Mary Wollstonecraft: A Revolutionary Life , and Lyndall Gordon’s Mary Wollstonecraft: A New Genus (which I have only recently started). I do love a good biography and both books are enjoyable, painting very different pictures of Wollstonecraft (Todd’s unsympathetic portrayal of a moaning, nagging, inconsistent woman; Gordon’s “pioneer of character” scarred by her background of domestic violence). I’m intrigued, though, by the way biography so very quickly moves into speculation, often on the slenderest grounds. Take Gordon’s theorising about Miss Mason, one of the teachers at the Wollstonecraft sisters’ school at Newington Green. Mary Wollstonecraft, Gordon writes, often referred to her as “‘poor Mason’, as though some misfortune were common knowledge”. Gordon informs us that “in most such cases the parents had lost their fortune, so that instead of fulfilling her destiny as a marriageable ‘lady’ the daughter wa...