Area Council and Area Executive Committee minutes Minutes and agendas of meetings of the Area Council and Area Executive Committee of the Derbyshire Miners' Association (DMA) and, from 1945, of the National Union of Mineworkers (NUM) Derbyshire Area. This series also includes one volume of minutes of meetings of Meetings of National Union of Mineworkers (NUM) Derbyshire Area Trustees. 1886-2015