Peter, Frances said the family were at Balladrine (60ac) in the 1851 census. As you are looking for where William Waterson was in 1833 the closest date you have an address for is 1841 when they were at Lhe Kerroo, Lonan.

Perhaps someone who knows Lonan could locate where the farm Lhe Kerroo or Lhekerroo in the Strand quarter of Lonan is/was.

The enumerator went to Ballakelley first, then to Lhe Kerroo, then Baldromma, which might give a clue.

Sue