KEIR HARDIE (1856-1915)
Born illegitimate and in poverty in 1856 and working in the coal mines from the age of ten. Yet Keir Hardie was to become the main founder of the Labour Party. An active trade unionist, he was sacked by the pit owners and became a trade union official, living in Cumnock with his wife, Lillee, where he was active in a local church.
Not what I would have thought was 'middle class'.