Twitcher Rock is a rock in Douglas Strait

Douglas Strait

Douglas Strait is a strait 2 nautical miles wide between Thule and Cook Islands, in the South Sandwich Islands. The existence of this strait was first noted by a Russian expedition under Bellingshausen in 1820. It was charted in 1930 by DI personnel on the Discovery II and named for V. Admiral Sir...

, 55 m high, lying 0.7 nautical miles (1.3 km) east of the southeast point of Thule Island

Thule Island

Thule Island, also called Morrell Island, is one of the southernmost of the South Sandwich Islands, part of the grouping known as Southern Thule. It is named, on account of its remote location, after the mythical land of Thule, said by ancient geographers to lie at the extreme end of the earth...

 in the South Sandwich Islands. Discovered by a Russian expedition under Bellingshausen in 1820. Charted in 1930 by DI

Discovery Investigations

The Discovery Investigations were a series of scientific cruises and shore-based investigations into the biology of whales in the Southern Ocean. They were funded by the British Colonial Office and organised by the Discovery Committee in London, which was formed in 1918...

 personnel on the Discovery II. They named it for John Montagu

John Montagu

John Montagu may refer to:* John Montagu, 3rd Earl of Salisbury * John Montagu , Master of Trinity College, Cambridge, 1683–1699* John Montagu, 2nd Duke of Montagu...

, fourth Earl of Sandwich, who was popularly known by the nickname "Jemmy Twitcher."