Jane
Sorry, nothing to help you with the questions you ask, but ...
"Henry Charles Daubeny, bpt at N Bradley 18 Dec 1786; Aug 17?? (poor copy) admitted to Winchester Col as a scholar; 18?? left the college."
Second son of Charles Daubeny of Bristol, gson of George Daubeny II, ggson of George Daubeny I, gggson of Andrew Daubeny.
I'm sure you are aware of the family from which Henry descends - the hugely influencial sugar refining, distilling, Merchant Venturer, banking family of Bristol throughout the 1700s.
The late Bristol researcher Mr I V Hall studied the family, through all manner of records, in great depth. When he died his research folders etc (a van full) were collected by the staff of Bristol Record Office where they remain in a large number of storage boxes. When I visited some years back they had not been catalogued but I was given access ... what the present situation is I don't know.
Mr I V Hall wrote up the history of the sugar refining family and it was published in the 1960s by the Bristol & Gloucestershire Archaeological Society in their Transactions books ... Pt I - The Daubenys - George Daubeny I, 1965, Vol.84 ... Pt II - The Daubenys - George II & George III, 1966, Vol.85. The latter has a detailed family tree covering 6 generations.
If you've not read them yet, they can be found s/h online and bookshops, but I also found a full set in Cheltenham Library. Undoubtedly the RO has copies also.
You may already have all this info, but if I can help in any way, please just ask. The bones of the Daubeny sugar history are on my website at
www.mawer.clara.net/sugardd.html .
Bryan