After the Second World War the British government encouraged people to move to the UK from countries that were part of the British Empire and Commonwealth to fill gaps in the labour market. The British Nationality Act 1948 gave a common citizenship to those from the
UK and its colonies, which made freedom of movement possible between these countries. Many people from the Caribbean moved to the UK at this time and those who entered between 1948 and 1971 became known as the Windrush Generation.

This article from 1948, ‘Welcome Home!’ reports on one group of arrivals.
Evening Standard (UK), 21 June 1948: 1
Copyright Evening Standard Limited