Sir George Houstoun-Boswall of Blackadder, 4th Bt. (1877-1915) (1877–1915) Parents Sir George Houstoun-Boswall of Blackadder, 3rd Bt. Phoebe Allan Children Elizabeth Houstoun-Boswall Sheila Houstoun-Boswall Siblings Evelyn Houstoun-Boswall Sir Thomas Houstoun-Boswall of Blackadder, 5th Bt. Partners Naomi Anstey