I saw your post on Ancestry.com and I don't know if by chance we will be of any assistance to each other, but I figure it is worth a try!
I am helping a dear friend to search for information on his mother who was a Dalby
from Nottingham or Leicester.
He unfortunately knows very little about her, for she died in child birth having him Sept 18th 1932. His father spoke rarely about her, but he knows she was originally a
Dalby, and was either called Edith or Edna.
She married a Dean. It is known that she was an accomplished harpist and opera singer, who performed in large venues, but it is not known if she was famous.
My friend grew up in Leicester, but mentioned that it might be helpful to check Nottingham.
I don't know if you can help, or if any of this is help to you. I would greatly appreciate any information you might know.