Horatia Elizabeth Erskine (1842-1922) (1842–1922) Parents Francis Seymour, 5th Marquess of Hertford Emily Seymour, Marchioness of Hertford Children Alan David Erskine Arthur Erskine Walter Hugh Erskine James Erskine Rachel Augusta Erskine Seymour Erskine Siblings Lady Constance Adelaide Seymour Lady Florence Catherine Seymour Lord Ernest James Seymour Lord Albert Seymour Lady Georgina Emily Lucy Seymour Frederica Georgina Seymour Hugh Seymour, 6th Marquess of Hertford Lord Victor Alexander Seymour Lady Mary Margaret Seymour Partners Sir David Erskine of Cardross