Southern Thule was discovered by a British expedition under Captain James Cook in 1775.

[1][2] Other names were later applied by the United Kingdom Antarctic Place-Names Committee (UK-APC).

Named by UK-APC for Peter J. Tilbrook, zoologist of the survey of the South Sandwich Islands from HMS Protector in 1964.

[7] Longton Point is a feature of sheer high rock cliffs alternating with steep icefalls, forming the southeast corner of the island.

This article incorporates public domain material from websites or documents of the United States Geological Survey.