When Did Joan Clarke Die?
When Did Joan Clarke Die? On 4 September 1996, Clarke died at her home at 7 Larkfields, Headington Quarry. An Oxfordshire Blue Plaque was unveiled on her house on 27 July 2019. What happened to Joan Clarke? On 4 September 1996, Clarke died at her home at 7 Larkfields, Headington Quarry. An Oxfordshire Blue Plaque