Edward's son, also named Edward, has Arbadna listed as his parish of origin in his obituary. As far as I can tell there is no such parish as Arbadna. Then it dawned on me, perhaps the reporter was spelling it out phonetically as he heard it. Which would make Aghada or Aghadown likely candidates. 

Additional Information
Date of Birth 1st Jan 1800 (circa)
Names of Children Wife Mary Riley b. circa 1800 At least one child named Edward b. 2 March 1828 immigrated to the US c. 1853

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