 The Marquise separated from her husband in 1905, but paid him an annual stipend of $8,000 in order to keep her title.In 1906, Mary Elizabeth's book, "The Double Doctrine of Rome", in which she takes issue with "Popery", its beliefs, and practices, was published.That same year she sent a letter to "The Converted Catholic", stating that Spalding was never their guardian, nor had her parents ever met him.