A cartman was simply a colliery worker who drove a horse and cart either underground or above ground whenever transport was needed for goods, equipment or even workers. From my own experience, I remember 'Tommy the coalman' in Netherton Colliery in the fifties. Miners, then, received an allowance of free coal and my father's allowance was delivered to us, and everybody else in Netherton, by horse & cart driven by Tommy the coalman as he was known to everybody. My father, however, had earlier worked with Tommy underground where Tommy was a cartman. Lung problems forced Tommy to exchange underground work at the colliery for above ground work - still employed by the colliery. Delivering the coal allowance then became a major part of his work. My father never referred to him as Tommy the coalman. To him Tommy was always Tommy the cartman.