Lisa, Charles Joughin [1757-1806] & Ann Kee [1761-1834] married in 1783, so their son James can't have had the dates 1766-1868. Did you mean 1796? Their son James was bapt 22 May 1796 in Andreas.

Andrew (no "Dicken") Joughin's transcribed 1810 will is here: www.iomfhs.im/lawsons/LawsonBMD/twill/1810_003.html

And his son Charles, who predeceased him, has a transcribed 1806 will here:
www.iomfhs.im/lawsons/LawsonBMD/twill/1806_007.html

There are several other related Joughin wills there as well.

Sue