Hello,I wandered into your site at the mention of Grove End Road. I am researching the Hon Pauline Cranstoun. Your description of the area is enlightening.
I've cited you as a source in my own blog post on Cassie Bruce at https://studiedmonuments.wordpress.com/2017/01/17/e-a-and-cassie-maskelyne-magic-couple/
Margaret Cecil Vardy was the great grand-daughter of James Cecil, 6th Earl of Salisbury (of Hatfield House) and his mistress Mary Grave.
Hi Jean,How lovely to see your comment. He was obviously a man of immense talent, Best, Susanne