I'm looking at Ada Dorothy Louisa Worsfold. I can't easily spot her in 1901 but it seems that she had the following siblings:
Harry Worsfold - Jun quarter 1903 - Mile End Old Town district
Kitty Edith Worsfold - Jun quarter 1906 - Mile End Old Town district
Alfred William Worsfold - Jun quarter 1908 - Mile End Old Town district
Rose E Worsfold - Sep quarter 1913 - Hendon district
Her mother's maiden name was Gunthorpe:
Marriage 16 Jul 1898 All Saints, St John's Wood
Harry Worsfold, 22, Bachelor, Police Constable, residence 74 Leman Street, father George Worsfold (deceased), occupation Gardener
Ada Annie Gunthorpe, 23, spinster, residence 4 Langford Place, father George Gunthorpe (deceased), occupation Timber Haulier
Witnesses Walter Williams and Annie Edith Chillingworth
Both Harry and Ada should be easily found in the 1881 census, free to search at
www.familysearch.org