The Dowager Countess of Kintore died at Roxburghe House, 1 August, 2006. The Daily Telegraph announcement says she was known as "Plum". The late 13th Earl of Kintore (1939-2004) married in 1972, Mary, daughter of Squadron Leader Elisha Gaddis Plum, of Rumson, New Jersey, United States. Is Plum's mother-in-law, Delia Countess of Kintore, widow of the 12th Earl, still with us?
Source: Daily Telegraph: 03 Aug 2006