I've had no luck in looking for the parents of Dorothy E Davies - can anybody he

[heywood]

You say you have all the information re later life, that is why I asked re the father’s details on the marriage certificate?

In the original post, does ‘her father was illegitimate’ refer to the person who is having the research done?

I am finding the Dilkes very difficult to research. What is Eliza’s maiden name?

[Annie65115]

The problem for me with the 1901 Dorothy is that the census states that she was born in Hackney; whilst the Dorothy Ellen Jelley Davies mentioned before was born in Pancras. There was a Dorothy May Davies born in Hackney in q2 of 1893, mmn Watkins, so I'm not too sure about this.

[Annie65115]

Other births listed with mmn Guinner:

Lucy SEARLE, 1883, Chertsey

Margaret Norah Agnes LANE, 1888, Medway  (this may be the daughter of Anna Maria Guinner who married in Kensington in 1886).

There is a tree with Margaret's family on Ancestry; this shows them in Pancras in 1901, but still with the Lane surname (shame!) so that would seem to rule out this one.

[heywood]

There is a birth
1892 William Joseph Davies, Pancras mmn Guinnse

[heywood]

1901 1209/103/57
There is William Davies 9 yrs born St Pancras and Emily Davies 10 yrs born St Pancras  both boarders with William Saunders and other people.

In 1911 William Davies and Emily Margaret are boarding with a White family.

Birth for Emily  Marguerite Davies has mmn Swinney.

Added
I doubt this is William Joseph with mmn Guinnse. The one above is possibly William James.

[Annie65115]

Marriages Sep 1882   
DAVIES    James Robert        Pancras    1b   10   
STONER    Charles         Pancras    1b   10    
Swinney    Emily         Pancras    1b   10    
Wood    Lucy         Pancras    1b   10    

---but of course this may not be relevant!

[heywood]

Yes I saw that and I think the children are accounted for.
Birth of William James Davies mmn Swinney.

I was quite hopeful at first.