Background
He was the eldest son of Hugh Cosnahan and Eleanor Finch (b 1753, d 1799).
He was the eldest son of Hugh Cosnahan and Eleanor Finch (b 1753, d 1799).
He spoke so powerfully at the House of Lords on the 13 June that year that he helped prevent a Bill proposed by the Duke of Athol to pay extra compensation to the Duke for handing the Island over to the Crown. In 1808 he became a Water Bailiff or Judge of the Admiralty Court. In the last few months of his life he was made a Deemster or stipendiary magistrate, delayed by the opposition of the Duke.
In 1781 as a member of the House of Keys he was sent to London to speak on behalf of the Island.