The collection comprises: agenda and minutes of meetings; reports (such as those of the managing director, sales manager, and annual general meetings); financial papers (financial statements, profit and loss accounts); records of results and analysis; accident reports; details of the firm's specific coal pits and coke ovens; files on nationalisation, advertising, mergers, power company, brickworks, farms and estates, staff and wages, sales, transportation and staff clubs; and files relating to other firms and employers organisations including Harton Coal Company, South Yorkshire Coal Owners Association, South Yorkshire Allied Collieries (Sales) Ltd, Richardson Westgarth and Co. Ltd, George Clark Ltd, Speight Tile Co. Ltd, Stephenson Clarke Ltd, Kilnhurst Colliery and Yorkshire Coke Oven Joint Tar Board.
The collection covers the period 1937 to 1955, a period when the colliery was undergoing modernisation. The records reflect this and reveal the large extent to which the colliery was involved in the local community as a whole. They also refer to coal and coke organisations with which the company was involved. Nationalisation features heavily in later files and the hostile reaction of the company directors to it is revealed. The files cover some years of the Second World War and provide an insight into the pressures under which an independent colliery operated during wartime.