In the intro to the Burngrange Disaster web site, it states the locus of the Colliery as being within Midlothian. Being 10 years old at that time in 1947, I would have placed Burngrange in West Lothian, I realise that Midlothian has shrunk over the years, but I cannot remember it going as far West to include the West Calder area.
Within 6 years of this Disaster we saw the first of the Shale Mine workers arriving into the Coal Mines of Midlothian, in particular Lingerwood Colliery in Newtongrange, and they all claimed to have worked in West Lothian. This may seem to be a trivia question, but these little details trigger my curiosity.
Alex W Duncan.
Ex Assitant Chief Electrical Engineer Bilston Glen Colliery.
See Dougie Gair's Explanation Below