This Member’s father was a younger son and namesake of Thomas Pakenham (1713-66) of Pakenham Hall, Westmeath, who was given the Irish barony of Longford in 1756, and his wife Elizabeth, who was created countess of Longford in 1785. Having been rapidly promoted in the navy during the American war of independence, Thomas junior followed in the family tradition by gaining a seat in the Dublin Parliament (for Longford borough, 1783-90 and 1797-1800, and for Kells during the intervening period) and giving solid support to administration, including for the Union. Successively surveyor, lieutenant and master-general of the Irish ordnance, the lord lieutenant Lord Cornwallis commented in 1799 that ‘although he is the best man at the board, he is rather light-headed and has not much method’.
However, it was through his mother that Pakenham came into substantial estates, if not great wealth. Her father, a long-serving Irish Member, was politically associated with his brother-in-law, Tom Conolly, the prominent but erratic opposition Whig, who represented county Londonderry at Dublin and had sat for Malmesbury and Chichester at Westminster. Conolly, whose fortune had descended to him from his great-uncle, the early eighteenth-century Irish Speaker of the same name, apparently intended to make his nephew George Byng, Member for Middlesex, his heir, but by his will of 27 May 1799 he disinherited Byng, with whom he had quarrelled over a law suit.
The inheritance included a large estate near Ballyshannon in county Donegal, and it was there that Conolly became involved in politics. He nominated the Protestant sitting Member George Hart at the general election of 1826 and seconded the adoption of an anti-Catholic petition at the county meeting in January 1827. His was the first signature on the requisition for a county meeting against the introduction of poor laws to Ireland in April 1830 and, perhaps because Hart was expected to retire, it was thought that he would be a candidate at the general election that summer.
Conolly made his maiden speech on the address, criticizing ministers for their complacency towards Ireland, 21 June 1831, when, with Waldo Sibthorp and Lord Stormont, he was described by John Cam Hobhouse* as being ‘amongst the most obstreperous of the minority’.
He signed the requisition for and was present at the abortive anti-reform meeting in county Donegal, 14 Jan., when he was ridiculed in a radical paper as an ‘aged dotard’, and moved a resolution condemning ministers over reform at the Protestant meeting in Dublin, 17 Jan. 1832.
