James Graham, 6th Duke of Montrose Scottish engineer and architect; Royal Navy officer during WWII (1878-1954) (1878–1954) Parents Violet Graham, Duchess of Montrose Douglas Graham, 5th Duke of Montrose Children Lord Ronald Malise Hamilton Graham James Graham, 7th Duke of Montrose Lady Mary Helen Alma Graham Jean Fforde Siblings Lord Alastair Mungo Graham Douglas Malise Graham Lady Hermione Graham Lady Helen Violet Graham Partners Mary Louise Hamilton, Duchess of Montrose
