I have not made a new post as this is somewhat tentative
DPB online omits (Marjorie) Alison Lady Innes (widow of the 12th Bt) which indicates she has died.
DPB 2019 states her address as being in Shepperton, Surrey. The Claygate Bridge Club website notes the death of Alison Innes:
URGENT UPDATE: The funeral of Alison Innes is this Wednesday. Alison Innes died on the morning of Wednesday 1st December [2021] after a long struggle. Her funeral is on Wednesday 22nd December at 1.45 pm at St. Nicholas Church, Shepperton, and afterwards at the Warren Lodge.
This may be Lady Innes but I haven't been able to find a death notice and there appears to be no probate record as yet.