Do you have Hilda's birth certificate I have searched for the marriage under Hilda Ward and then for Frank Nash but found no connection so I looked for a Hilda Ward aged around 6 on the 1881 census there were only 3 shown within a +or- 2 years of 1875 birth and they were from 1875 1876 and 1877 and were from Black Heath, Kent, England 75 then 1876> London S W, London, Middlesex, England and 3rd <1877> Exeter, Devon, England
there was no sign of a Hilda Ward oround 1875 other than these so are you sure of her birth date ???
in the mean time a look here will show what London Cemeteries there were
http://www.londoncemeteries.co.uk/?page=list
You have me a little hooked so please let me have all the information you know is reliable and I will continue to look for you if you don't have the 1881 census take a look at
http://www.familysearch.org/ENG/Sear...rch_census.asp
Look forward to hearing from you
Roger