A thousand people. Meeting each other. Making friends. Having babies. Sharing their lives. But whether they know it or not, they all share something else: the same father. Maud Dromgoole's play Mary's Babies is inspired by the true story of Mary Barton and her husband Bertold Wiesner, pioneers of fertility treatment, who used Bertold's sperm to artificially inseminate up to a thousand women, before destroying the evidence. This provocative, funny and fascinating play imagines a series of encounters between the half-siblings, known as the 'Barton Brood'. This version of the play premiered at Jermyn Street Theatre, London, in March 2019.