text: Athduff or Rathduff ! or Ra-athduff!!
  Another spelling mistake nearby, copied from the GSGS war maps. This time it's a bit weird. A lone "RA" is placed before and above the name of the Townland "Athduff".
  I know that this townland is called "Rathduff" for sure and it is Rathduff in other sources. So I will make the change. I just wanted to note the strange occurrence.
  
  GSGS War maps that townlands are copied from:
  http://maps.openstreetmap.ie/oocmaps.html?zoom=16&lat=53.7892&lon=-9.10536&layers=B0000TFFFFF
  
  
  OSM
  https://www.openstreetmap.org/#map=16/53.7816/-9.1095&layers=N