CD-RW (copied October 2004) containing:
-Materials pertaining to Markus Casey's supervision of excavations for sewage infrastructure installations ahead of a new development in Merlin Park, Galway, including 10 photographs of excavations (6 March 2003) and 6 Word documents (.doc) related to permits and invoicing (15 March 2002 – 18 March 2003);
-55 documents pertaining to Casey's personal business records and finances;
-19 aerial photographs of an site under excavation and surrounding property in Mountrath, Laois (17 April 2004).

CD-RW (written April 2004) containing 50 Word documents (.doc) related to Markus Casey's study of areas to be affected by upgrading of the N5 road through County Roscommon. Each document is a profile of confirmed or potential sites of archaeological and historical significance including colour photographs, locator maps, and physical location descriptions.

CD-RW containing Word documents (.doc) related to Markus Casey's study of areas to be affected by upgrading of the N5 road through County Roscommon. Casey notes that 2 known monuments (a bridge at Scramoge and a previously-bisected ringfort) will be impacted by the proposed scheme) and also notes that 5 known monuments and 6 previously unrecognised features will require test excavations. The documents includes 37 profiles of confirmed or potential sites of archaeological and historical significance (including colour photographs, locator maps, and physical location descriptions), plus 6 files comprising the final report (see P164/1/1/23 for a physical copy).

CD-RW (written 20 April 2004) containing:
-Material pertaining to an archaeological assessment conducted by Markus Casey of 27 Quay St. and 2,3 & 4, Quay Lane, Galway, including photographs of the interiors and exteriors of the buildings before and during the assessment, correspondence regarding the assessment, and Casey's completed report (5 June 2003 – 28 November 2003, 87 files);
-Reports authored by Casey for a properties in Ballinphuill, Corofin, County Galway and Murrooghtoohy South, Fanore, County Clare where the owners proposed to build houses (3 March 2004 – 10 March 2004, 2 files);
-3 photographs of an archaeological site in Knockbrack, County Laois (7 April 2004);
-An unsorted folder with 3 one-page excerpts from other reports and a personal family photograph (15 May 2003 – 24 December 2003).

CD-RW containing 150 aerial photographs of sites proposed for domestic dwelling construction and their surrounding environs. Locations include Flaskagh More, Williamstown, County Galway; Mountrath, County Laois; and Athy, County Carlow.

CD-RW containing 250 aerial survey photographs of the N8 corridor and proposed M8 corridor between Cullahill and Cashel.

CD-RW containing 184 aerial photographs taken by Markus Casey during a survey looking for sites of possible archaeological significance that may be disturbed by the construction of a bypass on the N21 road around Adare, County Limerick. 10 photographs have duplicate copies in .psd format.

CD-RW containing 52 safety data sheets (.doc format) for various airplane fluids produced by Irish Shell, plus a spreadsheet (.xls format) listing hazardous materials.

CD-RW (copied October 2004) containing:
-Materials compiled for an archaeological survey of a proposed development site in Carrowmoneash and Frenchfort, Oranmore, including Casey's final report (15 August 2001 – 8 December 2001, 4 files);
-2 documents (.doc and pdf format) pertaining to the tender of an archaeological surveying contract at Diamond Hill, Letterfrack, Connemara National Park (27 September 2002 – 16 November 2002);
-2 photographs of a site Casey was inspecting near Craughwell, County Galway (5 May 2003);
-Letter and invoice to the owner of Brackloon Castle, Clonfert, County Galway, for services performed regarding an archaeological assessment (8 May 2003, 2 files);
-Aerial photographs of the Claddagh Basin (23 October 2003, 25 files);
-Materials pertaining to inspection of a property by Casey and Sarah Small of a property site in Turloughmartin, Corofin, County Galway. Includes photographs of the site, annotated maps, and the completed report (12 November 2003 – 20 November 2003, 40 files);
-Materials pertaining to Casey's December 2003 archaeological assessment of 21 Eyre Square/Ballalley Lane, Galway, including photographs of the site and excavation, an annotated map, and the final report (21 December 2003 – 22 December 2003, 12 files).

CD-RW (copied October 2004) containing materials pertaining to the Wexford Sewage Scheme Water Conservation Project. Casey was commissioned to survey the areas to be disturbed by the replacements of a 4.2 km length of water pipe between Raheen Beg and Ballycanew village, and a 1.8 km length of water pipe between Ballygarrett village and Ballynagam. The report reveals itemises 9 features and monuments within the study area, of which one, a stone humpback bridge at Coolook Beg, may be slightly impacted. The CD-RW contains photographs, annotated maps, and two reports (2 January 2004 and 6 January 2004) authored by Casey (see P164/1/1/31 for a physical copy of the 6 January report).