Rentals for the lands of William Gore, 1775-1829, Owen Ormsby, 1781-1809, Mary Jane Ormsby, 1812-1854, and William Ormsby-Gore, 1815-1858, in the counties of Westmeath, Leitrim, Sligo, Mayo and Roscommon. The Westmeath and Leitrim estates are not listed after 1776. The rentals after 1789 are mainly in printed format. The lands of Mary Jane Ormsby-Gore are listed separately from her husband's Irish estates, but they appear to have been managed by the same agent, with the rentals organised on an annual basis from May 1st. Between 1846 and 1850 the crisis of the Irish Potato Famine is evident from the allowances made to some tenants for losses of animals and crops, and ejection of numerous others from their holdings, with considerable loss of rent arrears to the landowners.