Mary Elizabeth Haldane c.1825-1925 (1825–1925) (1825–1925) Parents Elizabeth Sanderson Richard Burdon-Sanderson Children George Abercromby Haldane John Scott Haldane William Haldane Elizabeth Haldane Richard Haldane, 1st Viscount Haldane Siblings Richard Burdon-Sanderson John Burdon-Sanderson Partners Robert Haldane