Thank you so much for taking an interest in this, you've already helped with your train of thought. We had not even considered who might have alerted her to Henrys death. You've definitely given me some food for thought.
Here's something we found but can't prove. In 1929 (the year of Henrys death) on the electoral register she can be found 51 Ethenard Rd under her own name. This is the first we hear of her, however when I checked solely under the address for the previous years we find a Cordelas Hill living with her 'husband'. I also cannot find a marriage of a Cordelia or Cordelas to a Hill.
To answer your question. The daughter is Ada Annie Elizabeth Whitchelo d 10/03/1901 of double pneumonia and apoplexy. Inquest held by Geo Percival Wyatt on 12/03/1901.
I really appreciate you helping me on this.