This replies to her name being listed in the
Centenarians in Debretts (Part 2) thread
A search for her gives a registration in Tamworth (which was her address in Debrett's 2008), date of death 12/06/2022, and notice date 18/07/2022.
She was dau of Horace Grey EGERTON-WARBURTON (1891 - 1956), scion of the EGERTON baronets (in the male line, descended from the 7th son of the father of the 8th & 9th baronets) and Vera LAKE.
She m 1946 William Adolphus CHAFFEY (died 1987) and had 1 son and 2 dau.