Hi Ian,Check out the Mary ann born Chalfont St Peters, Buckinghamshire, England in 1851 census.Are her parents deceased on marriage certificate?Alison
1851 census: Eton, Berkshire. Thomas Goddard, 29, groom; wife Mary Ann; daughter Mary Ann, 6, born C St P; Elizabeth, 4; Emily, 2 months. Can't see them in England in 1861 or 1871.