Calvert, once a member, with his attractive Irish wife, of the prince of Wales’s set, was by 1820 a respected country gentleman, who had almost entirely rebuilt the Tudor mansion house at Hunsdon. He played no part in the family brewing enterprise, which was carried on by his younger brothers Robert and Charles.
He divided against government on the civil list, 3, 5, 8 May, and the additional Scottish baron of exchequer, 15 May; but he was in the majority for Wilberforce’s compromise resolution on the Queen Caroline affair, 22 June, and saw no reason for the House to grant Hume’s request for information on the allowances of the royal dukes unless ministers contemplated an increase in that of the duke of York, 7 July 1820.
Calvert signed the requisition for and attended the county meeting on agricultural distress, 1 Feb. 1822, but evidently did not speak.
Calvert signed the requisition for the Hertfordshire county reform meeting, 8 Feb. 1823, but, for reasons which are not clear, he could not obtain a hearing when he tried to address it.
Calvert voted for Catholic relief, 1 Mar., 21 Apr., 10 May 1825, and observed on 22 Apr. that the frequent debates on the subject had done much to dispel popular ignorance.
He secured the appointment of a select committee on the problem of petitions which tried to dispense with standing orders, 24 Nov. 1826.
Calvert presented petitions for repeal of the Test Acts, 15, 18, 25 Feb., said on 20 Feb. that few Dissenters were hostile to Catholic relief, and voted for repeal of the Test Acts, 26 Feb. 1828. On 25 Feb. he objected to Waithman’s call for army economies, arguing that it would be sensible first to tranquillize Ireland and reduce Britain’s colonial commitments. Taken to task by Hume, he replied that
when the manufacturing districts were in a state of starvation ... he never felt a wish to intervene coercively with the people. He ... had always extended feelings of commiseration towards the sufferers, though he was not to be persuaded by them, that parliamentary reform was the remedy for all their privations.
Calvert briefly assumed a high profile in the House through his intervention in the controversy over how to deal with East Retford, which eventually led to the resignation of the Huskissionites from the Wellington ministry. On 25 Feb. he reiterated the view that the House was perfectly entitled to transfer the franchise from one set of electors to another if it had been abused. In committee on Tennyson’s bill to give the seats to Birmingham, 21 Mar., he moved an instruction for the borough to be sluiced by extending the right of election to the freeholders of the hundred of Bassetlaw, contending that the 2,000 voters there would not be in the pocket of the duke of Newcastle, that such a step would benefit the agricultural interest, that the rights of innocent voters should be preserved, and that the alternative scheme had no chance of passing the Lords. He was, of course, aware of the cabinet decision to compromise on the problem of East Retford and Penryn by throwing the former into the hundred and proposing the replacement of the latter by Manchester. On the strength of the government’s, and particularly Peel’s attitude, Calvert’s instruction was carried by 157-121. Three days later he and Peel were at pains to deny any collusion on the subject. Proceedings on East Retford were shelved pending the progress of the Penryn bill in the Lords, which encountered such hostility there that it was withdrawn. When the committee of the whole House on the East Retford bill resumed, 19 May, Calvert, maintaining that ‘the landed interest is daily dwindling away, and ... the monied interest is daily rising’, again proposed extension to the hundred instead of enfranchising Birmingham. His instruction was carried by 14 votes, but the ministers Huskisson and Lord Palmerston, partly through a misunderstanding, voted against Peel in the minority, despite a prior government decision to adhere to the arrangement of March. Huskisson’s ill considered offer of resignation and Wellington’s indecently hasty acceptance of it immediately ensued. After further discussions on the East Retford bill, 2 June, Calvert’s amendment was confirmed, but he found himself at odds with Sebright, who like most reformers considered extension to the hundred a fudge. On 24 June Calvert got leave to introduce a separate bill to disqualify by name a number of East Retford voters who had been found guilty of corruption; it had a first reading two days later. On 27 June he defeated attempts to transfer the franchise to Yorkshire and to kill the Bassetlaw bill; but with the session drawing to a close proceedings on both measures were deferred, 11 July 1828, when Calvert admitted that the names of dead voters had been included in the disqualification bill as a deterrent to others.
He seconded Slaney’s renewed attempt to reform the poor rates, 17 Apr. 1828, when he said that he was ‘a warm advocate for alteration, because I know of no more fertile source of crime than the poor laws as they at present stand’. The following day he doubted whether New South Wales was ready for the introduction of jury trials, as Mackintosh proposed. He supported the corn bill, 28 Apr., pointing out that English farmers, unlike their continental counterparts, invested large amounts of capital in the cultivation of their land. He seconded Sebright’s unsuccessful bid to allow the bill for the erection of a new court house at St. Albans to be proceeded with despite a failure to comply with standing orders, 29 Apr., and observed that the orders relating to private bills stood greatly in need of revision, 2 May. He voted for Catholic relief, 12 May. He divided for an inquiry into the circulation of small notes in Scotland and Ireland, 5 June, in protest at the amount of public money being spent on the refurbishment of Buckingham House, 23 June, and for inquiry into the Irish church, 24 June. On behalf of an absent colleague, he tried to empower magistrates to regulate according to local circumstances the time to which public houses could stay open under the licensing bill, 19 June 1828, but he was persuaded by ministers to withdraw the motion. At the new Hertford mayor’s inaugural dinner, 29 Sept. 1828, Calvert insisted that his consistent support for Catholic relief had not ‘in the slightest degree endangered the Protestant establishment’.
Calvert voted for the amendment to the address, 4 Feb., again for Blandford’s scheme, 18 Feb., and for the enfranchisement of Birmingham, Leeds and Manchester, 23 Feb. 1830. With Peel’s support, he carried his motion to bring in the East Retford bill, 11 Feb., defeating Tennyson’s amendment for transfer to Birmingham by 154-55. He saw the measure through its second reading, 26 Feb., made short work of a ‘ridiculous and preposterous’ attempt to force future Members for the constituency to swear their innocence of bribery before taking their seats, 8 Mar., and carried its third reading by 104-83, 15 Mar. The measure was eventually rushed through the Lords and became law on 23 July 1830, just in time for the general election. Calvert stated that many landowners had made substantial reductions in rent to assist distressed farmers, 12 Feb. He was given a week’s leave to attend the assizes, 1 Mar. At the county meeting to petition for tax reductions and reform, 13 Mar., he declared that he was ‘not opposed to the present government’ because they had carried Catholic emancipation, ameliorated the criminal code and abolished ‘several useless places’; but he threatened to ‘enter the lists with those who opposed them’ if the budget did not propose ‘considerable reductions in the public expenditure’.
He encountered no opposition at the 1830 general election.
There were a few desponding, hypochondriac gentlemen, who strove to make the people believe that reform would pull down the king, destroy the peerage, and overthrow the church. This was all humbug. The fact was, the Lords had been poaching upon the people’s manor, and when the people’s rights were restored by the bill, he was sure the peers would be much better liked than at present.
A threatened opposition collapsed, and Calvert came in again with Sebright.
That month Calvert, now aged 68, initially declared his intention of retiring when the current Parliament was dissolved. So too did Sebright, but they were persuaded by the county reformers to stand again to counter a strong Conservative threat. At the general election in December Calvert was returned second in the poll, but he stepped down at the next dissolution.
