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In 1887, John Bartholomew's Gazetteer of the British Isles described Knockmahon like this:
Knockmahon, hamlet, 1 mile E. of Bonmahon, S. co. Waterford; copper has been mined here.
How to reference this page:
GB Historical GIS / University of Portsmouth, History of Knockmahon, in and County Waterford | Map and description, A Vision of Britain through Time.
URL: https://www.visionofbritain.org.uk/place/29636
Date accessed: 09th April 2026
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