Jane Sissmore, who became Jane Archer when she married in 1939, was a good friend of my Aunt Sana. I found both of these images of Jane in a box of photographs that came from my Aunt.
I notice one of them is the image that keeps appearing on the Internet.

The life of Jane Archer has been documented in a book by Dr Claire Hubbard-Hall titled: 
Her Secret Service: The Forgotten Women of British Intelligence

Dr Claire Hubbard-Hall



From Wikipedia:
Kathleen Maria Margaret Sissmore, MBE (1898–1982), was known as Jane Sissmore and then Jane Archer after her marriage in 1939. In 1929 she became the first female officer in Britain’s Security Service, MI5, and was still their only woman officer at the time of her dismissal for insubordination in 1940. She had been responsible for investigations into Soviet intelligence and subversion. She then joined the Secret Intelligence Service (MI6), but when Kim Philby, later to be exposed as a double agent, became her boss he reduced her investigative work because he feared she might uncover his treachery.

Colonel Edmund Sissmore

Jane Sissmore, the daughter of John Edmund Angelo Sissmore and Kathleen Maud Forbes-Smith was born in Bengal on 11 March 1898 and moved to London in her early childhood with her parents and elder brother.

John Edmund’s father was Colonel Sissmore (shown)

Jane Sissmore. (2024, September 23). In Wikipedia. https://en.wikipedia.org/wiki/Jane_Sissmore

Here is a section from my family tree showing Kathleen Maria Margaret Sissmore (Jane Sissmore)