Annual report and rental for year end June 1866, containing reports on the steady and continuous improvement of the financial affairs of the estate. Also discusses drainage and land improvements particularly the 343 statute acres on either side of the Tullamore Road, and a new project at Ballyknockan flat. Reports that the soil here was particularly poor, and 650 tons of Dublin dairy manure was shipped down the Grand Canal and spread over the land, resulting in a marked improvement in grass growth. Also reports on the completion of the Killeigh main-drain and the Plovers-egg drain at Clonad Wood. Also includes a report on large-scale farming on the estate and the construction of three new farmhouses and a new forge.

On political matters, the report describes the 1865 general election which was contested by Sir Patrick O'Brien, John Gilbert King and Mr. Hennessy (O'Brien and King elected). Provides a detailed breakdown of voting preferences by the tenantry of Geashill Estate, who Trench reports, voted and returned home peacefully 'before the usual excitement attendant on an Irish Election had begun.' Also includes a description of election day in Tullamore, complete with mobs with 'shillelaghs'.

Annual report and rental for year end June 1867, containing reports on the continuously improving financial situation of the estate, due mainly to the increase in rental receipts. Also reports on drainage at Ballyknockan and the remarkable effect of Dublin dairy manure has had on the land in this area. Other farming improvements include the invention and introduction by Trench of a new drainage plough which was given special merit by the Royal Agricultural Society of Ireland. Further farm machinery was also purchased such as a mowing machine and a hay-tedder which were hired out by the farmers of the estate.

Reports that building and slating has increased all over the estate and provides a description of various building repairs and a newly-built farmhouse let to the Commons family - 'one of the oldest and most respectable families on the estate.' Also reports that four new labourers' cottages built in Killeigh for people whose houses were in ruins, were awarded the Gold Medal and Challenge Cup by the Royal Agricultural Society of Ireland. Also refers to the sale of timber to the Great Southern & Western Railway, which allowed for a large portion of Derryclure to be thinned of beech and replanted with larch and oak, and also necessitated the purchase of a weighing machine for timber to avoid the tolls of the weighbridge in Tullamore.

Referring to past agrarian outrages, Trench remarks that the tone on the estate is 'excellent' and 'it is as if Fenianism never existed'.