The first time Miss Gabrielle came to my attention was when finding info about a photo of her holding a whip. It lead to the blog The Little Cherub.

Gabrielle Ray (1883 – 1973) was an English stage actress, dancer and singer, best known for her roles in Edwardian musical comedies.

Ray was considered one of the most beautiful actresses on the London stage and became one of the most photographed women in the world. In the first decade of the 20th century, she had a good career in musical theatre. After an unsuccessful marriage, she returned to the stage, but she never recovered the fame that she had enjoyed. She later struggled with depression and spent her last 37 years in a mental hospital.
A website I can really recommend is this one, the site holds a large collection artwork and lots of background information about Gabrielle Ray.