Correspondence of John Horncastle, agent to Sir Henry FitzHerbert, consisting largely of letters to Sir Henry detailing the day-to-day administration of the estate, and including plans of Nettleworth Hall D239/M/E/16229-16232, sketch of lands belonging to William Robinson D239/M/E/16236, a list of the annual subscriptions in Nottinghamshire made by the late Henry Gally Knight, notice of auction of contents of Firbeck Hall, late home of Henry Gally Knight D239/M/E/16252, sketch of the parish of Warsop, 1850 D239/M/E/16258, sketch of manors within the parish of Warsop D239/M/E/16264-65, copies of letters written by Horncastle anonymously to the Nottinghamshire Journal on the price of corn and the movement of rent D239/M/E/16268-70 1848-1850