Predominantly correspondence, ranging through national and local politics, the coaltrade, business and social affairs, family and domestic matters, news of London fashions and society, including detailed description of a 1749 firework display. Also includes small groups of election and estate papers, material on Lanchester church, deeds and documents in legal disputes, items on the 18th century Newcastle attorney Joshua Douglas (father-in-law of Sir Thomas Clavering, 7th Bart.), shipping papers.
Nos 458-479 (correspondence of the Archdeacon of Northumberland, Bishop of Durham, and Bishop's agent) are largely unconnected with the Claverings and may be strays from the Auckland Castle Archives.