The term 'MINER's Daughter' is a reference to the COAL mining industry, and is derived from the phrase 'COAL MINER's daughter'. This phrase is used to describe someone who is born into a family of COAL miners, and is often used to refer to a female member of such a family. COAL is a combustible black or brownish-black sedimentary rock, composed mainly of carbon and hydrocarbons. It is widely used as a fuel, and is also an important source of energy for many industries.