An Eton friend of Nugent Buckingham, William Young (1747-1815) lived at Delaford Park, Iver, Buckinghamshire. He was an author, fellow of the Royal Society, & a Grenvillite MP for:

• Mawes: 1784-1806
• Buckingham: 1806-07

Young was a testy man, well liked by Buckingham, but despised by others in the Grenvillite Camp:

Mr Young sailed the night before last for England; he really has been much liked here; as people admire the prodigious fund of conversation he possesses; and he is at times, in my own confession, very entertaining. Some, however, have been disgusted with his presuming manner of talking of Berkeley, Dick Neville, Buckingham, and the like, being so evidently improper even if he was their constant pet companion. The same people, however, swallow as gospel all he says about his own political and family consequences, not knowing anything to the contrary; while it sometimes makes my blood boil to hear the pitch of extravagance and absurdity to which he carries this kind of conversation. I confess again that it requires some degree of cleverness to have carried off everything as well as he has done, and to have left so favourable impression behind him; though I do not approve of that sort of display of false colours. (Scrope Bernard to William Wyndham Grenville, 14 February 1788; HMC Fortescue V1, p 303).

When Nugent Buckingham was Lord Lieutenant of Ireland, with sections of the Treasury at his disposal, Young observed that that Buckingham's "kind friendship conferred what, at that moment, was the most essential aid to my family subsistence." In 1788, he was in financial trouble (see letter to Nugent Buckingham). During the Regency Crisis 1788-89, he was one Buckingham's principle informants on political developments (Court & Cabinets of George III). 

Sources

Sack; Court & Cabinets of George III