May I add another to your list namely Fanny Carby.
I watched again the Tv Play 'Up The Junction' and saw Jessie Robins, a character actress familiar to many for her down to earth no no nonsense working class roles.
In a great couple of scenes, she is teamed with Rita Webb and Hilda Barry. In a previous posting I mentioned Avis Bunnage Hilda Fennemore and Ruth Kettlewell-all actresses you know by sight.
Jessie was a good supporting actress.
May I add another to your list namely Fanny Carby.
Don't recall much about this actress: Marianne Stone was the most prolific 'bit part' player, though everyone remembers a regular ie; Rita Webb. Best to all.