There?s a townland of Magowna (357 acres in size) a few miles west of Ennis. It?s on the R474 which runs from Ennis to Miltown Malbay. Griffiths Valuation for 1855 lists several Mungovan households farming there. You can see where they were using the map facility on the Griffiths website.
There was still one Mungovan family farming there in 1901:
And in 1911: