"Heather M J McIntire". Ancestry. "Heather M J McIntire", England & Wales, Civil Registration Marriage Index, vol. 23, General Register Office, p. 1489, 1976, retrieved 30 June 2019 – via Ancestry (subscription required)
Trôo, in the Loir Valley (not Loire), has numerous troglodyte or semi-troglodyte dwellings still in use. It was one of these that the Grigsons purchased. The cave had no electricity, water or gas.[17][18]