Basil Templer Graham-Montgomery British baronet and inventor (1852–1928) Parents Alice Hope Johnstone Sir Graham Graham-Montgomery, 3rd Baronet Children Walter Graham-Montgomery Lena Graham-Montgomery Siblings Lucy Graham-Montgomery Helen Graham-Montgomery Charles Percy Graham-Montgomery Evelyn Graham-Montgomery Arthur Graham-Montgomery Alice Graham-Montgomery Sir James Graham-Montgomery, 4th Baronet Partners Theresa Blanche Verschoyle Mary Katherine Moncreiffe