Lady Mary Helen Alma Graham (1909-1999) (1909–1999) Parents James Graham, 6th Duke of Montrose Mary Louise Hamilton, Duchess of Montrose Children James Townshend Boscawen Simon John Evelyn Boscawen Siblings Jean Fforde James Graham, 7th Duke of Montrose Lord Ronald Malise Hamilton Graham Partners John Perceval Townshend Boscawen Leslie Colville Dunn