The childrens Bapts are on FreeREG but unfortunately no Burial for James.
Note, they are bapt dates you have for some of the children not birth dates.
I did notice a Paul/Elizabeth Kelly bapt children there same time frame.
1851 Paul is born c 1799 Isle of Wight, Kirkbradden
Possible James was from there also?
Trish

I also note that the 27 Jun 1820 Bapt of John Kelly has Parents as John/Elizabeth
May be transcribed in correctly?
Occp is Seaman though of Father
I hope someone can help you Leigh