All the eminent female biographers on the Post this week have overlaps not only with authors and subjects in Persephone books, but also in the wider interests and causes we support. Claire Tomalin (b 1933) is the biographer of Katherine Mansfield, and of Jane Austen and Mary Wollstonecraft - without whom the literary and philiosophical landscapes would be very different. She also broke new ground with her book about Ellen Ternan which revised the widely accepted thinking about her relationship with Charles Dickens.