https://www.nowness.com/series/a-womans-work/blanche-vaughan-egg
Hugo de Ferranti is married (date unknown, but as of 2015) to Blanche Vaughan, described as a chef and food writer. Possibly Blanche M. Vaughan. His own entry is at
http://www.tatler.com/the-tatler-list/f/hugo-de-ferranti [virtually none of these entries list current spouses and/or partners, BTW]
[excerpt]
"Director Errol Rainey captured Vaughan’s elegant handiwork at her West London home and Devon country escape, which she shares with her art dealer husband, Hugo de Ferranti.
As a young chef, Vaughan sharpened her knives at some of London’s most revered institutions – Moro, St. John and River Café – before publishing an acclaimed kitchen handbook, In One Pot: Fresh Recipes for Every Occasion. A serious car accident left her with temporary memory loss and an inability to multitask; in the face of adversity, however, the remarkable chef developed recipes influenced by the personal constraints she was facing. "
[end excerpt]
Any relation to the Welsh family into which Lady Louise Fitzroy married?
Shinjinee