Hi,
The Valuation Rolls on Scotlands People give William Shannon living at Nith Cottage, Castlebank, Glencaple Road, Dumfries up to 1907, David Shannon is found there 1914/15.
Castlebank will be the place of death but not a cemetery, there are a number of cemeteries in Dumfries possibly St.Michaels, Dumfries or Dumfries High Cemetery which are both in area near to Castlebank.
hmcc.