Digby was closely connected with his uncle Henry Fox to whom he owed his political promotions. In May 1749 he became a clerk in the secretary of state’s office under the Duke of Bedford, and in 1750 secretary to Fox’s friend Sir Charles Hanbury Williams with whom he travelled in Germany and Poland. In 1754, with Fox’s support he was to stand for Wells, and Lord Digby for Dorset; but when the latter moved to Wells, Henry, left without a seat, wrote to him on 19 Mar.:
Things have turned out unlucky for me. I wish now I knew where to come into Parliament for fifteen hundred pound. For if I do not come in at the general election I am pretty sure I shall not come in at all till Mr. Fox comes into power and that must be very uncertain.
And next day, thanking his brother for an offered loan of £500:
I don’t know where I can come in for fifteen hundred. I ... would readily give that and hope in that case you would be so good as to help me proportionably. At all events you may be sure I will try all I can and be at the same time as careful of your money as if it was my own.
Digby mss.
In September 1755, on a vacancy at Tiverton, Fox unsuccessfully approached Newcastle on Digby’s behalf;
As part of Fox’s reward in Apr. 1763, Digby was appointed a lord of the Admiralty with the promise of a British peerage ‘in the next session’;
Lady Holland wrote to her sister, the Duchess of Leinster, 6 Dec. 1764:
One thing I believe makes Holland House pleasant just now is all those poor dull Digbys being out of town. Lord Holland loves them, and they are good people, so I don’t tell him so, but they give me an ennui I can’t support.
The Royal Register in 1781 described Digby as ‘the only man of sterling character whom Lord Holland was concerned in promoting’; and George Selwyn called him ‘worthy’, but wished for ‘a little more sprightliness in his mind’.
He died 25 Sept. 1793.
