While studying archaeology at the University of Cambridge, Powell received the nickname Terence, which stuck with him throughout his life.
[2] Powell worked in air photographic intelligence for the British in Delhi, India during World War II.
[3] Powell specialised in the archaeology of ancient Western Europe, particularly the Neolithic British Isles and the Celts.
[4] Powell (along with Glyn Daniel) excavated the Neolithic passage grave of Barclodiad y Gawres on Anglesey (Ynys Môn), between 1952 and 1953.
Within the central chamber was discovered a hearth approximately 1m in diameter which contained a mixture of charcoal and stone chips.