She was d of Alfred SPARK and Mary MITCHELL. She m 1964 Iain William Ferguson HANHAM 1936-2011, and had a son and a dau, both married with issue.
Lady Joan died peacefully on 24th January 2025, aged 85. Beloved mother of Emma and Jamie and grandmother of Sophie, Matthew and Mia. Private family burial. Memorial Service at Chelsea Old Church, SW3 5DQ at 12 noon on 6th March 2025. All who knew her very welcome.