The Belfast Monthly Magazine Vol. 10, No. 55 (Feb. 28, 1813), pp. 120-121.
The assertion may be correct right up to the 1860s there were strenuous efforts by some Landlords and their Agents to promote productive agriculture but with scant results. The Land tenure at the time did not generally help.
This may have been on either the Kenmare (Brown) or Bantry (White) Estate.
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The Dublin Penny Journal
Vol. 1, No. 15 (Oct. 6, 1832), pp. 117-118
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