The only on line parish records for Kerry are on the websitewww.irishgenealogy.ie
1823-1837 Tithe Applotmentswww.census.nationalarchives.ie
Griffith Valuation 1846-1864
Benmore, a townland in the Parish of Rattoo, PLU Listowel
Ballyduff, a Parish, and also townland and village in the PLU
of Dingle, Tralee or Listowel
Clooneen, a townland in the Parish of Killahan, PLU Listowel
A Poor Law Union or Civil Registration district (1864+)
covered parish's, town, villages, townlands within 12 mi.
The only Donoghue in 1851:
Florence Donoghue, Parish of Killarney, Townland Killarney,
Poor Law Union Killarney, tenant of Rev. Edward Herbert and Jeremiah Cronin
#22 Henn Street - a house and yard
My program does not require correct spelling but tried against another source and the above is the correct spelling no Donaghue, 1 Donahoe of a Parish Kilcrohane in the PLU of Caversiveen.
No Johnson's in the Parish of Killahan in which Clooneen is a townland.
Try the white pages for Kerry and any Donoghue or Johnson in the places named above. You can write letters to addresses given.