Avril Markham (died 1966) (d. 1966) Parents Ann Grant William Markham Children Siblings Gwendolen Markham Mabel Markham Cecile Markham Ronald Markham Rupert Markham Nigel Markham Cyril Markham Claron Markham Hermione Markham William Markham Ethel Markham Sybil Markham Partners Gerald Walsh