Joan Maude by Madame Yevonde, 1932. Taken from the NPG booklet shown below (Face To Face, Autumn/Winter 2016).
She married Frank Waters in 1933 (St. Clement Danes, Strand, London), and they had one daughter. Sadly, Frank died at the age of 45.
Her obituary (1998) said that in her later years, she walked each day on the South Downs.
The photographer, Madame Yevonde, was not a mother (or French, I think). She was a suffragette from Bromley. At the age of 21 she set up her massively successful photography studio, at 92 Victoria Street, London. I walk up this street frequently, so could easily take a photograph. All I have to do is remember to look for the number, next time I’m in the area. Easier said than done.
You can see the whole patchwork, and my research, here.