Sir Thomas Houstoun-Boswall of Blackadder, 7th Bt. (1919-1982) (1919–1982) Parents Sir Gordon Houstoun-Boswall of Blackadder, 6th Bt. Daisy Copeland Waller Children Amber Georgina Houstoun-Boswall Sophie Houstoun-Boswall Sir Thomas Alford Houstoun-Boswall of Blackadder, 8th Bt. Siblings Alistair Houstoun-Boswall Partners Anne-Lucie Naquet Margaret Bullen-Smith