Mercury, 1832
Type: Tender ;
Launched : - ;
Notes:

22 Jun 1832 tender to the Ocean.

22 Jun 1832 arrived Portsmouth with 5 smugglers on board for the Flag Ship.

25 Jun 1832 departed Portsmouth for Sheerness.

Mercury, 1832
Type: Yacht ;
Launched : - ;
Notes:

Captain Sir T. Ussher has been apptd. to the Bermuda yacht, per the Hampshire Telegraph of 22 Oct 1832, where it is surmised, along with similar appointments e.g. Captain Sir James A. Gordon, K.C.B., R.N., apptd. to the Chatham yacht, Captain H. B. Ross, R.N., to the Plymouth yacht, and Rear Admiral Superintendent Sir Fred Maitland, K.C.B. apptd. to the Mercury yacht, based at Portsmouth, and that these appointments may have entitled these officers, who have been appointed as Captain Superintendents, at the respective yards, may be entitled to be selected as Members of Courts Marital ?

I have no details for this yacht.

Mercury, 1837
Type: Cutter tender ;
Launched : 7 Feb 1837 ; Disposal date or year : 1904
BM: 70 tons
Notes:

26 Oct 1839 Portsmouth, The Mercury tender has this week conveyed 20 seamen to Plymouth for the Revenge, now only 80 men short, and 20 boys for the Impregnable.

16 Jul 1840 departed from Portsmouth for Sheerness, with men for the Southampton ;

15 Aug 1840 Portsmouth, departed on Tuesday with a lieutenant from the Vanguard, to raise men for that ship at the different places along the coast.

3 Oct 1840 Portsmouth, The Emerald and Mercury, tenders, have departed to-day for Jersey and Weymouth, to collect volunteers for the navy.

20 Nov 1840 Portsmouth, departed for Devonport, with 30 supernumeraries for the Impregnable and Endymion.

27 Feb 1841 Portsmouth, had departed for Chatham and Sheerness, with men paid off from the Satellite.

5 Mar 1841 Portsmouth, departed for Devonport, with men for the ships at that port.

10 Apr 1841 Portsmouth, departed for Sheerness, with a lieutenant of the Indus on board seeking to recruit men from the Asia, which was paying off.

19 Apr 1841 Portsmouth, arrived with volunteers for the Indus, late of the Asia's crew.

21 Apr 1841 Plymouth, arrived from Portsmouth.

19 Jun 1841 Portsmouth, arrived to-day from Devonport with seamen.

18 Sep 1841 Portsmouth, departed for Devonport, with supernumeraries.

30 Sep 1841 Plymouth, departed for Portsmouth.

25 Oct 1841 Portsmouth, arrived from Southampton, and departed again.

30 Oct 1841 is reported to have been sent to Hastings to recruit men for the Fleet.

9 Nov 1841 Portsmouth, arrived from fishery protection duties off the coast of Sussex.

11 Dec 1841 departed Spithead for Plymouth.

22 Jan 1842 departed Bristol with her crew of 8 and 22 volunteers, and having experienced very heavy weather took shelter under the lee of Lundy Island, where she remained until Tues 25th, when she departed to the westward, but, following a severe squall and a tremendous sea, she was thrown on her beams end, with her cross trees in the water, during which time 6 members of her crew were washed overboard. Four of them managed to make it back on board, but Thomas Berry, and Thomas Sangar were drowned. Everyone who was below rushed on deck, excepting two of the volunteers, Aleck McKey, and James Reed, who were killed by the pig iron and tank, which had broken free, destroying the lower deck, and wounding 6 of the men. The boom and gear was cut away and the vessel righted herself, but such was the state of affairs below decks that it took an hour or so before they could even light a candle. Shortly afterwards the steamer County of Pembroke came to her rescue and towed her back to Bristol. An inquest was held, but whether this was at Bristol or Portsmouth, isn't clear.

25 Jul 1842 arrived Plymouth from Portsmouth with supernumeraries for the Wolf.

20 Dec 1848 Tender at Portsmouth.

1866 Mercury renamed Y.C.6 (Y.C. = Yard Craft, as in Dockyard Craft).

1876 Y.C.6 renamed Plymouth.