Another example of a blind/partly sighted miner:
John Samuel, described as 'nearly-blind', was one of two survivors of the Cae Colliery (Llanelli, Carmarthenshire) innundation in 1858 which killed ten colliers (eight by drowning and two by suffocation in air pockets) when they holed through into their own abandoned, flooded workings made in the same seam from an adjacent shaft. They had been mining without plans, a commonplace situation in smaller coal mines in this period, and had not been boring ahead. Two of John Samuel's brothers also worked in the Cae Colliery; they both drowned. The cornoner's jury returned a versict of 'accidental death' but added the rider 'caused by the ignorance of Daniel Francis, one of the deceased, in not using precautionary means of boring and keeping plans of the workings' (Daniel Francis, an experienced overman, was the appointed manager of the mine).
John Samuel subsequently worked as a lander at a nearby colliery where he died in 1859 by falling down the shaft.