I knew both Adam McNaughtan and Kevin Michell when I lived in the Glasgow area, two great voices. Travelled around the clubs with them and some members of The Cluther, in what became (jokingly) called the Adam McNaughtan Road Show.
I think that they allowed me to join them, as I was the one with transport. Don't know Bob Blair but I would certainly like to hear their band.
Some of my favourites of Adam's songs are:
         Heights of Starvation (Skyscraper Wains/Jelly Piece Song)
         Where is the Glasgow
         Yellow on the Broom

      Happy listening,

          GRex