Tattie Bogle - you and I must move in the same circles as I recognise and agree with your list, as well as the earlier posting for The New Rope String Band. Saw them at Celtic Connections in January and going to see them next Sunday at the Harbour Arts Centre in Irvine (Scotland).
One additional name who will be known to many in the west of Scotland is Graham Gass who has penned many very clever funny songs , including
"He Works For Cunard" - try saying it quickly!!