Sue, I know you know more now from your Geni tree. He ended up with 3 wives and my 2nd great grand aunt, Sarah Ann Cardin was #3 (born in India in 1800). He married her in late November/early December 1824, 9 months later their son Septimus (7th son!) was born and Wilson died.

My English researcher and I speculate that with all those children and two wives (the second one probably died in childbirth with her last child) and probably an "old" will, she and her son got left out/forgotten about.

The marriage announcement was in the Bath Chronicle and Weekly Gazette - Thursday 09 December 1824 and in the Bristol Mercury of 13 December 1824. Both Septimus and his mother died kind of early but after 1832 (they're mentioned in her father's will of that year, he died in 1834, Richard Cardin. He was the attorney on St. Kitts for Earl Romney and other bigwigs like that. She died alone in London in 1848, after a 3-year painful illness (she was buried December 29, St. Martin in the Fields, Camden Town, you can find it on here, "Sarah Ann Wilson"). There was a newspaper notice too (I think you can find on here, also) which names her relic of "John W. Delap Wilson, formerly Commander-in-Chief and President of the Council, in the island of Saint Christopher."