Katherine Elizabeth Cochrane (died 1989) (d. 1989) Parents Thomas Cochrane, 1st Baron Cochrane of Cults Lady Gertrude Boyle Children Andrew Bruce, 11th Earl of Elgin Lady Martha Veronica Bruce James Bruce Lady Alison Margaret Bruce Edward David Bruce Lady Jean Bruce Siblings Thomas Cochrane, 2nd Baron Cochrane of Cults Dorothy Agnes Cochrane Louisa Cochrane Archibald Cochrane Ralph Cochrane Roger Cochrane Marjorie Julia Cochrane Partners Edward Bruce, 10th Earl of Elgin