[3] In 1757 he was encouraged by his friend and 3rd cousin (both were descended from daughters and eventual co-heiresses of John Granville, 1st Earl of Bath (1628–1701)) Granville Leveson-Gower, 2nd Earl Gower (1721–1803), to enter Parliament for Staffordshire, when that seat had become vacant following the death of Gower's uncle, Hon.

[4] In 1762 his brother sought an office for him, leading to his appointment as Clerk Comptroller of the Green Cloth (worth £1000 per year).

He also succeeded him as Bailiff of Jersey, a post (for life) long held by heads of the Carteret family.

[10] In 1813 Lysons reported that it contained portraits of Margaret, Countess of Lennox; the mother of Rembrandt; Sir George and Lady Carteret; John, Earl Granville, and at the foot of the staircase "an ancient view" of Longleat, seat of the Thynne family.

[6] His simple white marble mural monument with bust survives in Kilkhampton Church, Cornwall, inscribed: