One of the Sub-Districts of Kanturk is named Boherboy, mostly covers sections of Kilmeen and Drumtarriff civil parishes, no mention that I see in the listing I have of Knocktemple civil parish being included, but the boundary could have altered slightly over the years.
There are a few other 'Knock' townlands in the district, but no good other close match to Knocknamogologh though. Knockmanagh, Knocknacurring (east & west), Knocknacurragh, Knocknadrahan, Knocknavoreen, Knockeendallane, Knocknamannagh (commons, east & west), and a few other shorted townland names that dont look right..