Hi
These are what I could find that match your dates given.
Name: KIDSON, Sarah Ellen Ada
Record Type: Births
Quarter: June
Year: 1861
District: Edmonton
County: Essex Hertfordshire Middlesex
Volume: 3a
Page: 171
this isfrom 1871 census
Betsey Kidson 34 Wednesbury, Staffordshire, England Wife Cheshunt Hertfordshire
Henry F Kidson 3 Cheshunt, Hertfordshire, England Son Cheshunt Hertfordshire
John Kidson 37 Shropshire, England Head Cheshunt Hertfordshire
Mary E Kidson 11 Cheshunt, Hertfordshire, England Daughter Cheshunt Hertfordshire
Sarah E Kidson 9 Cheshunt, Hertfordshire, England Daughter Cheshunt Hertfordshire
Source information: RG10/1347
Registration district: Edmonton
Sub-registration district: Cheshunt
ED, institution, or vessel: 5
Folio: 94
Page: 21
Household schedule number: 126
John is listed as a gunsight maker.
A likely birth for Mary E Kidson
Name: Kidson, Mary Eliza
Record Type: Births
Quarter: September
Year: 1859
District: Edmonton
County: Essex Hertfordshire Middlesex
Volume: 3a
Page: 150
1871 census as for Sarah.
1881 for Mary, so marriage must be after the census of 1881
Household Record 1881 British Census
Search results | Download Previous Household Next Household
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Household:
Name Relation Marital Status Gender Age Birthplace Occupation Disability
John HAY Head M Male 30 Sunderland, Durham, England Deriving Income From Interests Funds Shares Etc
Lucy M. HAY Wife M Female 30 Sunderland Penshaw
Lilian M. HAY Dautr Female 5 Botley, Hampshire, England
Gladys M.H. HAY Dautr Female 1 Tunbridge Wells, Kent, England
Sophia G. ELLIOT Sister In Law U Female 25 Sunderland, Durham, England
Mary PALMER Servt U Female 32 Brecon, Wales Cook Dom Servt
Mary WELLS Servt U Female 30 Fareham, Hampshire, England Nurse Dom Servt
Mary KIDSON Servt U Female 21 Cheshunt, Hertford, England Housemaid
James HOGG Servt U Male 21 Greenock, Renfrew, Scotland Footman Dom Serv
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Source Information:
Dwelling St Helens Road 1 St Helens Tower
Census Place Portsea, Hampshire, England
Family History Library Film 1341285
Public Records Office Reference RG11
Piece / Folio 1162 / 69
Page Number 27
Hope these may be of some use, couldnt find anything solid on the Bancroft/Byrne wedding,if you have first names let me know and I will search the 1871 census for you.
Nicky