Colthurst, who had joined Brooks’s, 3 June 1816, was praised the following year by Peel, the Irish secretary, for his ‘pure and honourable motives’ of public conduct and ‘disinterested’ support; but he was considered ‘incapable of being a good Member’ and ‘to all intents and purposes Peel’s Member’ by Lord Hutchinson, the brother of his quasi-radical colleague Christopher Hely Hutchinson.
Colthurst urged the necessity of measures to suppress Irish disturbances ‘as soon as possible’ and moved for papers on the issue, 21 Apr. 1823.
At the 1826 general election Colthurst offered again. Rumours of a contest came to nothing and he was returned unopposed, Lord Hutchinson (now 2nd earl of Donoughmore) noting that he had ‘promised to hurry’ proceedings ‘as much as the law will permit’ and ‘give nothing by way of expense’, and that he would go back ‘to England the day after’.
Colthurst died at Leamington, Warwickshire in June 1829 after a short illness.
