Lady Mary Dundas (died 1911) (d. 1911) Parents John Dundas Margaret Matilda Talbot Children Roger Edmund Joseph Plowden Siblings Lady Harriot Emily Dundas unknown son Dundas unknown son Dundas Lady Alice Dundas unknown daughter Dundas unknown daughter Dundas Lady Laura Octavia Dundas Cospatrick Thomas Dundas John Dundas William Fitzwilliam James Dundas Lawrence Dundas, 1st Marquess of Zetland