Mrs Jacomb-Hood appears to be her sister.
Reta Jacomb-Hood, ne้ Henrietta Kemble de Hochepied-Larpent, baptised 16 Nov in Hove, Sussex, was the daughter of Catherine Mary Melvill and Arthur John (8th Baron) de Hochepied-Larpent, and granddaughter of John James de L'arpent and Georgiana Frances Reeves. She married the artist George Percy Jacomb-Hood, Esq., M.V.O., on 28 Jun 1910, in Marylebone, London.
(From FindaGrave.com)
Bev