A Catholic commoner ‘of ample fortune and ancient lineage’, Power was the descendant of a branch of an eminent Irish family
Prior to his entering the Commons, questions had been raised about Power’s political affiliations. Conservative critics claimed that the ‘schoolboy’s address’ had ‘the support and countenance of Mr. O’Connell’. The Times, however, reported that Power went into Parliament ‘as a Whig, and not as an O’Connellite’, noting that the duke of Devonshire, the town’s patron, ‘would not listen to his pretensions, unless upon the stipulation that he was to be a supporter of the Whigs merely, and not a joint of the tail’.
In April 1840 Power, an owner of steeple chasers and one of ‘the most celebrated sporting characters’ in the south of Ireland, married the daughter of Sir John Power of Kilfane. That July he took the Chiltern Hundreds, it being said that he ‘preferred to figure on the turf to toiling in St. Stephen’s’.
