Hi
Without the details of the marriage which is in Epsom civil registration district which means it took place in any of these places
Ashtead, Banstead, Carshalton, Cheam, Chessington, Cobham, Cuddington, Epsom. Ewell, Fetcham, Great Bookham, Headley, Leatherhead, Little Bookham, Stoke D'Abernon, Sutton
and knowing the couples' ages and father's names and occupations and Henry's middle name, particularly with a common surname like Mitchell it is difficult to pick either of them up with any certainty on earlier censuses.
If he was Henry Walter Churchman this might be the most likely birth registration
Births Mar 1886
CHURCHMAN Henry William Hartley W 2c 188
Born Hampshire he is in Frimley in Surrey on the 1901 census but Brighton in 1911. Equally the middle name could be Walter which gives other possibilities. To be sure you really need to obtain a copy of the certificate unless you have any further information about the couple such as where and when they died, because that would give their ages and would at least help confirm which Henry it might be.
http://www.gro.gov.uk/gro/content/certificates/Regards
Valda
