Louisa Acheson, Countess of Gosford British noble and Red Cross administrator (1856-1944) (1856–1944) Parents Louisa Cavendish, Duchess of Devonshire William Montagu, 7th Duke of Manchester Children Lady Theodosia Acheson Mary Acheson Archibald Acheson, 5th Earl of Gosford Patrick Acheson Lady Alexandra Acheson Siblings Alice Stanley, Countess of Derby Mary Louise Montagu, Duchess of Hamilton George Montagu, 8th Duke of Manchester Lord Charles Montagu Partners Archibald Acheson, 4th Earl of Gosford