His Majesty's Sloop
Hornet was paid off at Portsmouth in October 1783, and seems to have remained out of commission there until sold in 1791. All the musters, pay books and logs in the National Archives catalogue end in October 1783, and as Mark says there is nothing else in the catalogue other than mentions of the cook and the carpenter in 1785, which is consistent with the ship being 'in ordinary' (out of commission). I think another
Hornet was commissioned in 1794.
Mark Barrett wrote:
I am not aware that you can check the index of passing certificates online (although I believe the index is available in book form) - but someone else may know better.
You are correct, Mark, the paper index can only be consulted at the National Archives.
It looks to me as though the 1786 date has to be wrong, and my guess is that the man in question is the first Robert Henderson who died in 1778. Perhaps he died on board the
Hornet? Except that one Cuthbert Collingwood was a Lieutenant in the
Hornet from March 1776 to July 1778, and I suspect there would have been only one lieutenant in a vessel that size. A look at the muster at the National Archives would prove that one way or the other.
As Mark says, there's not much more that can be done without a trip to the National Archives.