To recap, Edwina had 4 sisters, Cecilia, Irene, Philomena and Marie. The first two were not in films. Philo's husband also was not in films. Edwina's husband Keith danced in just one film.
That leaves us with Marie. Both she and her husband (Bharat Shinde) were regulars, Marie (active 1955-1976, 91 films), Shinde (active 1951-1984, 120 films).
Here, from Anjaan (1956) Marie and Shinde, when they were very much in love (according to Edu), and Shinde a typical pose from the 60s.
I promise to get a pose from the 70s soon.
Now You Know!