I've just come across your posting. I am indirectly connected to this Neave family. Sir Richard Neave, born December 18, 1773 and of Dagmans Park, Essex, married Sarah Irvine, the granddaughter of my 5 x great grandfather George Peters, on July 2, 1807 at Chelsea. He diedJanuary 13, 1858 and his wife died August 31, 1826.
They had two sons: Richard Neave, b. 31.5.1808 who married Anna Maria Dorothy EYTON; and George Peters Neave, b. 18.11.1809 who married Maria PINDER.
I hope this helps and I would be very interested in learning anything more that you have.