396,750 trees were planted on a further 179 acres. He retired in 1805 and was replaced a year later by James Loose, but continued to advise Coke on forestry matters. The library was also expanded, through the work of William Roscoe, who bought books including the Mainz Psalter for Coke between 1814 and 1842. Coke also expanded the estate itself, incorporating farms around the House as their leases ended, and by 1800 the estate covered 3,500 acres. Samuel Wyatt was also employed from 1799 to 1805 to build new lodges at the entrance of the extended estate, and until 1806 also worked on a new kitchen garden; this covered six acres. Humphry Repton was employed to extend the lake yet again, and proposed building a boathouse and fishing pavilion, as well as a chain ferry leading to a "snug thatched cottage"; there is no evidence this proposal was ever approved. Most of the work was completed by 1810, and from then on Coke's attention turned to hunting game. The estate was explicitly designed with that in mind, and game books note between 1,300 and 2,500 partridges were killed most years. In 1822, Elizabeth, Coke's daughter, recorded that 800 birds were shot in one day. Jane Dutton, Coke's wife, gave birth to their first child in 1777, a daughter named Jane. Two more daughters followed; Anne Margaret in 1779, and Elizabeth in 1795, before Jane's death in 1800. Jane was married to Charles Nevison Howard, Viscount Andover, on 21 June 1796, but on 11 January 1800 Andover died in a shooting accident on the Holkham estate. Jane remarried to Henry Digby in 1806, and they had 11 children. Landlord and agriculturalist As a landlord, Coke was a firm believer in the right and moral obligation of a landowner to improve the quality of life of those living on his estates. The roles of landlord and tenant were clearly set out by the late 18th century; the landlord was to provide fields, roads and buildings, while the tenant would provide the seed, implements and manual labour. Coke's estate included 54 farms when he inherited it, with excellent farm output. There were, however, significant debts as a result of his uncle's work on Holkham Hall, with the interest alone being £4,000 a year. He had some difficulties dealing with the people employed before he inherited the estates, and when the steward Ralph Cauldwell,