‘Plump, genial ... [and] dark haired’ Allen, a close connection of the Darwin and Wedgwood families, was a ‘busy sociable man, popular in Pembrokeshire and London’, where he was a founder member with his brother-in-law and fellow Whig Sir James Mackintosh* of the King of Clubs.
Summoned by their Commons leader George Tierney, he continued to divide regularly with the Whig opposition on all major issues, including for parliamentary reform, 18 Apr., 9 May 1821, 20 Feb., 24 Apr. 1823, 9 Mar., 27 Apr., 26 May 1826, and Catholic relief, 21 Apr., 10 May 1825.
Allen was described by a contemporary as ‘an excellent Member ... although no speaker’, and his argument certainly tended to get lost in a mass of detail.
I think that more danger is to be apprehended from six millions of discontented subjects in Ireland, than could result from the admission of about 30 Catholic gentlemen into the House of Commons. I admit the respectability in private life of Lord Liverpool and Lord Eldon, but I cannot forget that they were also the last champions of the slave trade. I have laboured for the reduction of our enormous establishments; for the remission of some of our heaviest taxes; for the mitigation of slavery in our colonial dependencies; and for the elevation of the Principality to a level with England in the administration of her laws.
Carmarthen Jnl. 3, 10 Feb., 9 June 1826; See also R.G. Thorne, ‘Pemb. and National Politics, 1815-1974’, Pemb. Co. Hist. ed. D. Howell, iv. 229.
After travelling in 1827 on the continent, where his name was linked with two pretty women, a Mrs. Patterson and Theresa, Countess Guiccioli, Allen resumed his high profile in West Wales politics as chairman of the Pembrokeshire magistrates, and promoted Catholic relief and the abolition of the Welsh courts and of West Indian slavery.
I know Mr. Allen very well. I have fought by his side in many a bad division and I admit no-one has greater claims on our party than he has, but if he attacks a man who is supporting us I do not see how he can expect that we should assist him.
Add. 51724.
When he died at Cresselly in April 1843 an obituarist wrote:
He began life as an uncompromising advocate on behalf of the ... Poles, a staunch supporter of Catholic and negro emancipation; and he professed the same liberal feelings when, upon a coalition of political parties in the county of Pembroke, he sat during two Parliaments ... He then enlisted under the banners of Tierney, Brougham and Mackintosh, labouring to reduce taxation, and give constitutional rights to every class of His Majesty’s subjects.
Ann. Reg. (1843), App. to Chron., 249.
The Cambrian also recalled his contribution to the campaign to abolish the Welsh judicature.
