Well, assuming that the fraternal link betweeen Kenneth and John is established beyond reasonable doubt, that doesn't assist in identifying their father, as Reverend Thomson's records as transcribed by Hew Morrison and published in 1911 give neither man a patronymic.
All that can be said with certainty is that they were nearby tenants, one in Sangobeg, one in Islandhall, and that they were not regarded by Reverend Thomson as requiring their status noted as "incomers" from another parish so the possibility of a father from Trotternish is not strong.
While Ann Morrison's ancestry can be traced back three generations from her marriage record, there is no prospect now of determining from written records who was father of the MacLeod brothers.