The biographer Winifred Gerin (1901-81), who wrote the lives of all four Bronte siblings, stumbled on her literary vocation on a visit to Haworth, after a difficult decade following the death of her first husband. On the same visit she met her second husband, a Bronte enthusiast twenty years her junior. Together they turned their backs on London to live within sight of the Parsonage, Gerin believing that full understanding of the Brontes required total immersion in their environment. Gerin's childhood and youth, like the Brontes', was characterised by a cultured home and intense imaginative...