Letters to Robert Campbell from Sir John MacDonald (Envoy to Persia) regarding his mission, events at the Persian Court, Persian affairs, Anglo Persian relations etc
Papers of a conference between the Duke of Wellington, Lord Ellenborough and William Astell (Chairman of the East India Company) and Robert Campbell (Deputy Chairman) at Apsley House regarding the renewal of the East India Company's' Charter
Correspondence of Sir Robert Campbell from and Rev George N Tredenik at Ballyshannon and Ramsgate, Sir Howard Douglas in Corfu and the Board of Ordnance etc regarding the new church at Ballyshannon, the government of the Ionian Isles, providing surety for Capt Campbell, etc
Letters from John Campbell regarding events at the Persian Court. Persian affairs, Anglo-Persian relations, Russia-Persian relations, reform of the Shah's army etc, written to his father Sir Robert Campbell
Official Correspondence of Sir John Campbell with the Board of Control, Court of Directors and Governor General of India etc regarding events at the Persian Court, Persian affairs and Anglo-Persian relations
Official Correspondence of Sir John Campbell with the Board of Control, Court of Directors and Governor General of India etc regarding events at the Persian Court, Persian affairs and Anglo-Persian relations, reform of the Shah's army etc