I thought the name "Grizel" would apply to a man and "Grizel Hamilton" would be a one-off. Wrong on both counts. This is her article from thepeerage: "Lady Grizel Winifred Louisa Cochrane F, #56457, b. 14 May 1880, d. 5 December 1976
Lady Grizel Winifred Louisa Cochrane was born on 14 May 1880. She married Lt.-Col. Ralph Gerard Alexander Hamilton, Master of Belhaven, son of Colonel Alexander Charles Hamilton, 10th Lord Belhaven and Stenton and Georgiana Katharine Richmond, on 1 March 1904. She died on 5 December 1976 at age 96. She was also reported to have died on 26 September 1932.
She was the daughter of Lt.-Gen. Douglas Mackinnon Baillie Hamilton Cochrane, 12th Earl of Dundonald and Winifred Bamford-Hesketh. Her married name became Hamilton."