Katharine Mary Markham (born 1913) (b. 1913) Parents Winifred Edith Barne Algernon Markham Children Philippa Markham Thorold Joanna Mary Thorold Sophia Thorold Siblings Hope Seymour Dorothy Markham Anne Winifred Markham Constance Margaret Markham Gervase William Markham Partners Charles Aubrey Thorold