Diaries belonging to Dora Trench (née Turnor), Benjamin Bloomfield Trench and Theodora Trench.
Each writer used their respective diaries to record signifcant life events, feelings and appoinments. They offer a unique insight in to their lives.

Research on Curralanty Fortified House, Co. Offaly (Parish of Kilmurryely, Barony of Clonisk). County Inventory Registration: 871.
Contains field sheet with details to level of preservation, nature of surviving structures, walls, earthworks, wooden structures and field boundaries. Incl. sketches of exterior and interior elevations, a written report over five pages and 22 photographs.

Research on Cullenwaine Tower House and Bawn, Co. Offaly (Parish of Cullenwaine, Barony of Clonlisk). County Inventory Registration: 842.
Contains field sheet with details to level of preservation, nature of surviving structures, walls, earthworks, wooden structures and field boundaries, aerial photographs and cartographic evidence. Incl. sketches of earthworks in two fields, exterior and interior elevations of bawn and tower house, a written report over four pages and 50 photographs.

Research on Cullenwaine House, Co. Offaly (Parish of Cullenwaine, Barony of Clonlisk). County Inventory Registration: 953.
Contains field sheet with details to level of preservation, nature of surviving structures, walls, wooden structures and aerial photographs. Incl. sketches of exterior and interior elevations, a written report over four pages and 15 photographs.

Research on Cullenwaine Church and Graveyard, Co. Offaly (Parish of Cullenwaine, Barony of Clonlisk). County Inventory Registration: 648.
Contains field sheet with details to level of preservation, nature of surviving structures, walls, earthworks, aerial photographs and cartographic evidence. Incl. sketch of a site plan, a written report over two pages and four photographs.

Deed appointing William Thomas Trench, of Loughton, Moneygall, King's County, a commissioner of the peace. Signed by R. W. A Holmes, Clerk of the Crown and Hanaper.

Research to Clonymohan Castle Site, Co. Offaly (Parish of Castletownely, Barony of Clonlisk). County Inventory Registration: 905.
Contains a field sheet and a written report over one page.
(No photographs included.)

Research to Clonlisk Castle Site, Co. Offaly (Parish of Kilcomin, Barony of Clonlisk). County Inventory Registration: 904.
Contains a field sheet, a written report over two pages and 15 photographs.

Research on Cloghmoyle Fortified House, Co. Offaly (Parish of Shinrone, Barony of Clonlisk). County Inventory Registration: 870.
Contains field sheet with sketches of site plan, exterior and interior elevations, a written report over four pages and 32 photographs.

Research on Clashagad Lower Tower House and Bawns, Co. Offaly (Parish of Dunkerrin, Barony of Clonlisk). County Inventory Registration: 834.
Contains field sheet with details to level of preservation, nature of surviving structures, walls, earthworks and a nearby stream. Incl. a sketch of the site, a written report over two pages and 17 photographs.