Five from Arthur Annesley (later 10th Viscount Valentia) mainly concerning hunting, n.d. c.1800; three from J. Gage, mainly concerning hunting and horse-breeding, one letter contains observations on Sir J.S.Sebright's The Art of Improving the Breeds of Domestic Animals, n.d.; four from J.Byng and his wife, mainly concerning hunting, n.d.,c.1794-1800; three from Col. Peter Dutens, concerning buying a horse, 1796.