Thanks casalguidi.
Alice and John are two children of John Matson who was a son of William and Jane.
However the dates don't fit.
I don't have a Mary of the right age either.
So although these children seem as though they are relatives, I can't tie any of them in.
Just to add to that problem, I don't have anyone with the name Doves either.
I believe that William was probably the son of one of the children of John Matson of Dover (died 13th November 1752) and Lucy Veel (died 27th July 1768) I also believe that this couple had 5 children of whom 3 were sons. John, William and Henry. My current thinking is that William could have been a son of Henry, but this is more guesswork.
There could be a solution in an illegitimate birth by a Matson lady but I can't locate one of the right age although a William Finch and a Sussanna (no surname) did record a birth of a William in 1800 at St. Marys, Dover.
This would explain the appearance of William having a middle name of Finch when he recorded the christening of his daughter Caroline in 1848.
I therefore wonder if Finch may have been the name of his mothers family?
OR did he have the name Matson as his Mother was a Sussanna Matson and raised him and he then added Finch when he discovered his father?
Sounds plausible except that I can't find a Sussanna Matson of the right age either!
Frustrating!!!