This replies to her name being listed in the
Centenarians in Debretts (Part 2) thread
A search for this lady brings up a file dated 11 June 2020, so I presume this is the year of her death. The applicants include the names of her 3 sons.
She was dau of David Edwin Macartney (1880 - 1957), 6th son of Sir John Macartney, 3rd Baronet, (1832 - 1911), and Ella Margaret McCulloch CRAIG (died 1978).
She married 1949 David Henry HOPTON, and had issue: 3 sons.