Margaret Mackenzie (died 1958) (d. 1958) Parents Georgina Caroline Ponsonby Harry Maxwell Mackenzie Children Siblings Alistair Ponsonby Mackenzie Harry Ponsonby Mackenzie Colin Rae Mackenzie Hector Ian Maxwell Inglis Mary Lilian Kythe Mackenzie Kythé Mackenzie Kenneth Gordon Mackenzie Gladys Georgina Mackenzie