Yes, there were and are coal mines in Raleigh County. This reference lists some including the Amigo Coal Co. -- Stevenson, Mary Legg. Coal Towns of West Virginia: A Pictorial Recollection. Took a very quick look through and I didn't see anything specifically about Stover. You might try the West Virginia Coal Miners discussion board on Ancestry.com --
http://boards.ancestry.com/topics.occupations.mining.us.wvco...