Around 500 passengers had travelled on the Empire Windrush from Jamaica, in response to job adverts in their local papers, to help plug Britain's post-war labour shortage.
But news of their imminent arrival prompted some alarm within the civil service and even questions in parliament.
Those without anywhere to stay were housed in a deep air raid shelter under Clapham Common, and it's thought that may be the reason that many came to settle in nearby Brixton - as the nearest labour exchange was in Coldharbour Lane.
Many of those on board the Windrush had only intended to stay in Britain for a short period of time, but 65 years on its clear the 'Windrush generation' and their descendants have become an integral part of London life.
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David Cameron said the Met proved it can "do more with less" and declined to criticise the Mayor of London for his water cannon spend.
A group of disabled activists threw toys and balls at him as he entered the conference.
A wet start to the week and the unsettled weather is set to continue over the next few days.