‘The early part of the life of Mr. Potter’, says an obituary notice,
He contested Cambridge at the general election of 1780, but was bottom of the poll. William Cole, the Cambridge antiquary, wrote about this election:
It is my firm belief that Potter, an agreeable man in person, eloquent to a great degree, of a most captivating conversation and behaviour, had he started a month sooner, would have carried his election; but he deferred it to the last of August.
Add. 5855, f. 146.
At Colchester in 1781 he opposed Edmund Affleck, who was financed by Government. ‘Would it not be possible’, wrote North to Robinson on 1 Oct.,
On 5 Dec. 1781, in the committee of supply on the naval estimates, he made his maiden speech:
Mr. Potter defended the Admiralty, and said, from his own connexions in business with it, he was convinced the Admiralty Board was zealously inclined to promote the true interests of their country; that they did all in their power to put that intention in practice, and that no criminality was imputable to them.
Yet on 12 Dec. he voted for Lowther’s motion against the American war—which did not prevent him from getting a share in an even larger contract (signed 19 Jan. 1782) to victual 10,000 men in the Carolinas, Georgia, and Florida.
At Colchester in 1784 he was supported by Richard Rigby, the leader of the opposition to him in 1780, who was hoping to turn out Sir Robert Smyth, one of the sitting Members. ‘To be sure Potter is not a very creditable representative even for that blackguard town’, wrote Rigby to John Strutt on 8 Apr.,
In 1791 Potter was living in France, and on 16 Jan. presented a petition to the National Assembly begging a patent for a new process of manufacturing glass and pottery: it would provide employment for over 500 people and ensure France the lead in those manufactures, while Potter promised a quarter of his profits ‘en don patriotique’.
Potter ... was deep in debt two years ago, but ... has now paid up, and is worth more than two millions. He was twice arrested under the revolutionary government ... There is no doubt that he is in France the secret agent of Pitt, with whom he has been closely connected since the Revolution.
In 1796 and 1797 Barras used Potter as a go-between with the British Government. In 1800 Potter was a first class medallist at the Paris industrial exhibition. He probably remained in France until 1814. He died in England, 18 Nov. 1817. His ‘opportunities and abilities’, writes an obituary,
