Between 1964 and 1973, Carreira conducted 11 missions to then Portuguese colonies, coordinated by the then designated Overseas Ethnology Museum.
Yet during this period, there were other researchers of the museum who also conducted missions to Angola. As the archive mostly does not follow an organisation by mission/author, it became necessary to situate all missions to Angola.
It also became relevant to locate Carreira’s other 6 missions, 5 to Cape Vert, and 1 to Mozambique.
Carreira was born in Cape Vert and lived for many decades in the then Portuguese Guinea – currently Guinea-Bissau.