Irton, who had ‘always held Conservative principles’, was lord of the manor of Irton, in the Bootle district of Cumberland.
In March 1833 Irton was brought forward by the Lowther interest to stand for the vacancy at Cumberland West following the decision of viscount Lowther, who had been returned for both Cumberland West and Westmorland at the 1832 general election, to sit for the latter. Claiming that the ‘landed interest was not fairly represented in the House of Commons’, he described the corn laws as ‘beneficial to every class’, and denounced free trade, arguing that the policy ‘had thrown a great portion of our trade into the hands of foreigners’.
In his first Parliament Irton was silent but ‘indefatigable in his attendance’.
At the 1835 general election Irton declared that he was ‘prepared to reform so far as is consistent with the constitution, and with the balance of kings, lords and commons’, and was comfortably returned in second place.
At the 1837 general election Irton declared that he would ‘strenuously oppose every attempt to alter’ the 1832 Reform Act.
Irton retired at the dissolution in 1847 to make way for Henry Lowther, the nephew of the second earl of Lonsdale. However, following the retirement of Edward Stanley in 1852, Irton was brought back into the fray on the Lowther interest. The Carlisle Journal ridiculed this decision, stating that the man ‘who has been rusticating about Irton woods since his retirement’ was only brought forward to replace Stanley because ‘there is not another young fledging of the Lowther family ready to succeed him’.
Irton’s return to Parliament was marked by a greater frequency of contributions to debate than had hitherto been the case, although they were generally short, and critical rather than constructive in nature. As a magistrate and deputy lieutenant for Cumberland who was ‘a regular attender at Quarter sessions’, Irton’s interventions reflected his support for justices of the peace in their administration of county affairs.
Following his retirement, Irton rarely took part ‘in the management of county business’.
