Euphemia Constance Houstoun-Boswall-Preston (1884-1966) (1884–1966) Parents Alice Mary Cunard Thomas Houstoun-Boswall-Preston Children Sylvia Mary Gibbs Siblings Sir Gordon Houstoun-Boswall of Blackadder, 6th Bt. Alistair Houstoun-Boswall-Preston Partners Cyril Chester Chester-Master Antony Edmund Gibbs