« Reply #19 on: Tuesday 16 February 21 07:52 GMT (UK) »
Lots of good suggestions, Josephine!
David is on the 1841 census, as an Ag Lab in the household of Nicholas and Frances (Howell) Stredwick or Stradwick. The other Ag Lab in the household was a Howell.
You might want to look at any Baptisms for any baby called David in Ringmer from 1809-1811 or so. He might have been informally adopted, although it seems unlikely he would have changed his surname.
It is possible your David was simply not baptized (one for my 3x great grandfather in Lancashire has never been found). Have you checked both the parish records and the bishop’s transcripts? He might have been a twin of William or Lucy, not expected to survive, and baptized at home, and not recorded.
I did check the BNA but found no death notice for David.
DNA might help you link to whatever family he belongs to.
A Richard Howell was witness on the marriage.
Perhaps he was really the "missing" William John. He was baptised late March. Maybe he was born 1st March - St David's day.
Berks / Oxon: Eltham, Annetts, Wiltshire (surname not county), Hawkins, Pembroke, Partridge
Dorset / Hants: Derham, Stride, Purkiss, Scott, Sibley
Yorkshire: Pottage, Carr, Blackburn, Depledge
Sussex: Goodyer, Christopher, Trevatt
Jersey: Fowler, Huelin, Scott
Essex/Herts: Livermore, Holgate, Law, Day, Myson, Boyton
Norfolk/Suffolk: Stone, Alexander, Tipple, Ingate