Rickford was a native and lifelong resident of Aylesbury, and since 1803 had been head of its Old Bank, which he had founded with his father six years earlier. Once an ally of the Grenvilles of Stowe in local affairs, he had diverged politically from the head of that family, the increasingly alarmist 2nd marquess of Buckingham. In 1818 he had contested Aylesbury as an independent and came in with Buckingham’s advanced Whig brother Lord Nugent, destroying the Whig Cavendish interest in the process. His local roots, ownership of Aylesbury property, resolute independence and judicious generosity with his wealth put him in a strong position; and at the general election of 1820 he was returned unopposed with Nugent after an interloper had given up.
In February 1823 Buckingham, now a duke in consequence of his coalition with the Liverpool ministry, claimed to know from their patronage secretary Arbuthnot that ‘there was a letter extant in the treasury from Rickford after his first election offering his support to government "on consideration"’, and reckoned that he had been given the recommendation to the local post office.
At the 1826 general election Rickford was returned unopposed for Aylesbury, though he did not adopt the ‘purity of election’ stance taken by Nugent.
Returned unopposed for Aylesbury at the general election in August, he could do no more on the hustings than express his gratitude, having been ‘bled the day before’.
Rickford voted for the second reading of the revised reform bill, 17 Dec. 1831, and generally for its details, though he divided against the enfranchisement of Gateshead, 5 Mar. 1832. He voted for the third reading, 22 Mar. He voted against government on the Russian-Dutch loan, 26 Jan., 12 July, but with them on British relations with Portugal, 9 Feb. He was in minorities for inquiry into distress in the glove trade, 31 Jan., to reduce the Irish registrar’s salary, 9 Apr., and for a tax on Irish absentee landlords, 19 June. He divided for the address calling on the king to appoint only ministers who would carry reform unimpaired, 10 May, but was absent from the Aylesbury meeting to consider the crisis, 15 May, when a call of the House was expected.
He topped the poll for Aylesbury at the general elections of 1832, 1835, and 1837 as a Conservative, having steadily diverged from Nugent and the Whigs on the questions of church reform and agricultural protection. He stood down, at the age of 72, in 1841.
