I wonder if this is the Marriage of Joseph & Mary Ann ?
Marriages Dec 1886
Evans Joseph Leigh 8c 312
Grundy Hannah Leigh 8c 312
HEATON James Leigh 8c 312
MORRIS Mary Leigh 8c 312
I see a Mary Morris born c1859 Walthamstow, in Service in St Pancras in 1881
11, Calthorpe Street - RG11; Piece: 195; Folio: 37; Page: 41
but I cant get a positive Id in 1871 or 1861 .... I suspect her parents are Benjamin & Eliza, but not 100%
Hope this will help