Cape Alexander is a cape which forms the south end of Churchill Peninsula

Churchill Peninsula

Churchill Peninsula is an ice-covered peninsula between Cabinet Inlet and Adie Inlet, extending some in a southeasterly direction from the east coast of Graham Land. It was photographed from the air by the Ronne Antarctic Research Expedition and charted from the ground by the Falkland Islands...

 and the east side of the entrance to Cabinet Inlet

Cabinet Inlet

Cabinet Inlet is an ice-filled inlet, long in a northwest–southeast direction, and some wide at its entrance between Cape Alexander and Cape Robinson, along the east coast of Graham Land. It was charted by the Falkland Islands Dependencies Survey and photographed from the air by the Ronne...

, on the east coast of Graham Land

Graham Land

Graham Land is that portion of the Antarctic Peninsula which lies north of a line joining Cape Jeremy and Cape Agassiz. This description of Graham Land is consistent with the 1964 agreement between the British Antarctic Place-names Committee and the US Advisory Committee on Antarctic Names, in...

. It was charted by the Falkland Islands Dependencies Survey (FIDS) and photographed from the air by the Ronne Antarctic Research Expedition

Ronne Antarctic Research Expedition

The Ronne Antarctic Research Expedition was an expedition from 1947-1948 which researched the area surrounding the head of the Weddell Sea in Antarctica.-Background:...

 (RARE) in December 1947.

Cape Alexander was named by the FIDS for Rt. Hon. Albert V. Alexander, M.P., First Lord of the Admiralty.