I'm looking for Caroline, wife of James Johnson. She was born 1845/6 in St Pancras. (James was born 1845 in Wellington, New Zealand. His father was William Johnson, b.1810, a Chelsea pensioner) They had children Ellen Beatrice b.1871, Lilian (Lily)b. 1877 and Alice b.1880. I have found the family in 1871 and 1881, but nothing in 1891.
I can't positively identify the marriage of Caroline and James, there seem to be 4 possibilities, so I can't get her maiden name. Any help would be gratefully received.