[1] Hamilton was returned to the Irish Parliament as Member for Carlow in 1725 and sat until 1727.
He was consulted by John Perceval, 1st Earl of Egmont on Irish matters in 1731, when he drafted a petition and bill to allow unenumerated commodities to go direct to Ireland from the colonies, instead of through Great Britain.
He was proposed as a government candidate for Wendover late in 1733, but did not stand at the 1734 British general election.
His elder brother James Hamilton of Carlow, MP in the Parliament of Ireland was an ancestor of the Lords Holmpatrick.
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