Although the registers carried Thames for some years after her return from her eighth voyage, there is no evidence that she ever sailed again.

In February 1807, some men were mutinous, but she rounded Cape Horn and fished off the coast of South America, being reported having been "all well" in March 1807.

[2] 2nd whaling voyage (1808–1811): Captain Joseph Bowman (or Bowerman), sailed from England on 11 March 1808, bound for the waters off Peru.

In February 1813 she was well in the South Sea fishery, in this case Timor, as were Inspector, Albion, Baroness Longueville, Good Sachem, Ocean, Cumberland, and Venus.

[8] Thames sailed from St Helena on 30 October as part of a convoy under escort by HMS Cormorant, a naval storeship coming from the Cape.

British ships were then free to sail to India or the Indian Ocean under a licence from the EIC.

[3] 4th whaling voyage (1814–1816): Captain John Stavers sailed from England in 1814, bound for the waters off Peru.

When Leveret's captain stated that it was a pity a shot hadn't struck him, Stavers replied that if it had, Thames would have returned fire.

[4] Although some sources report that Thames was sold to the government,[4] or private owners,[5] she appears to have remained under Mellish's ownership.

[12] On 5 October, as Thames was returning from the South Seas, she ran afoul of Freundschaft, Johanson, in the Downs.

[13] 8th whaling voyage (1824–1826): Captain John Meek sailed from England on 10 October 1824, bound for the Sandwich Islands.