I am not sure what other information you need apart from the little girl mentioned
Loos as if I am barking up the wrong tree with parents I have shown above
Louisa Maud
Sorry, I am in need of the name of the child in the will written above.
The earlier posters believe it says Lily (or Lilly) Spinsby and linked it to the 1903 birth of a Lily Spinsby. Unfortunately I stated it couldn't be that Spinsby because the father of the will is called William.
OK, sorry about that 
From Soldier's Effects database, his mother's name is Ellen. He died 15 January 1915.
Thank you, yes, William's mother is is Ellen. I got the will to help find more information about Ellen and then his child. This branch of the Spinsby family do not have many records after 1900ish (except William's brother Reginald who is my great great grandfather (Ellen is my 3rd great grandmother) and William's army death record.).
Yes, James and Ellen are listed on 1891 census living in Clerkenwell with William and his other siblings
Do you think the little girl was born out of wedlock considering he left money to his mother for the child and not a named wife or mother of Lily?
Louisa Maud
It could be, I can't find many details. The family are notorious in my research for disappearing and reappearing from records or because the records have been transcribed or even originally written wrong in official registers (so I'm guessing not very literate). I've found them as Spinsley, Spinby Sponsby, Splinsby, etc., or even because they were in workhouses and didn't record things. Ellen disappears in the 1890's and reappears in electoral rolls with her older daughter Louisa in the 1920's. Ellen is my brick wall, and I'm trying to build a picture around her at the moment.
Any other ideas if it isn't written Lilly? Or do everyone agree with this assessment.