Notebooks of A. Foulkes-Roberts, [c. 1882]-[1941], containing extracts from parish registers, mainly from Denbighshire and Flintshire; transcripts of tombstone inscriptions and church memorials, copies of probate records from the Dioceses of Bangor and St Asaph, and the Principal Probate Registry; and notes and extracts from marriage licence bonds, clergy subscription books and other St Asaph diocesan records. The copies were made by A. Foulkes-Roberts and his brother R.D. Roberts.

Deeds and documents relating to Flintshire and Denbighshire, mainly the Rhyl area, 1788-1904; including documents relating to the estates of the diocese of St Asaph.

Deeds and documents, relating to properties in Flintshire, mainly in St Asaph, 1365-1677.

Lists of bishops of St Asaph and rectors of Llandderfel, and extracts from the Llandderfel parish register, all in the hand of Owen Richards [Fronheulog], Llandderfel.

Copies of memorial inscriptions, mainly in the churches of Prestatyn, Rhuddlan, Rhyl, Trefriw, St Asaph, Trelogan, Tremeirchion, Whitford and Ysceifiog, with sketches and other illustrations.

'Memorandum on the Remains from the Cave at the Great Ormes Head' by Professor W. Boyd Dawkins; extracts from the parish register of Newmarket, 1698-1718, Newmarket tombstone inscriptions, and extracts from St. Asaph probate records, in the hand of T. Allen Glenn; notes by Edward Owen on 'Abbrevatio Rotulorum Originalium'; and a variety of extracts by Thomas Edwards from printed sources (relating to Offa's Dyke, the geography of North Wales in the Neolithic Age, Norman Britain), and from 'Y Cwtta Cyfarwydd'.

A copy of 'Speech of the Earl of Powis [i.e. Edward, second earl] in the House of Lords on Tuesday, May 23, 1843, on moving the second reading of a bill for preventing the union of the sees of St. Asaph and Bangor . . .' (London, 1843), with letters and printed papers relating to the threatened union of the sees, the object of which was to transfer the income of the see that would be suppressed to a see of Manchester. Among the papers are letters from the earl of Powis, George William, fourth baron Lyttelton, and Charles Scott Luxmoore, dean of St. Asaph.

The series comprises a deed relating to property in the parish of St Asaph, 1737.

A copy of Y Cwtta Cyfarwydd: The Chronicle Written by the Famous Clarke, Peter Roberts, Notary Public, for the Years 1607-1646, with an Appendix from the Register Note-book of Thomas Rowlands, Vicar-choral of St. Asaph, for the Years 1595-1607 and 1646-1653, ed. by [the Rev. Canon] D[avid] R[ichard] Thomas (London, 1883), interleaved and grangerised by the editor.
Minor corrections and additions have been made to the original text, with more substantial notes supplied on the interleaves throughout; these include many additional pedigrees (ff. 34 verso-42 verso passim, 46 recto-verso, 48, 51, 53 verso, 57 recto-verso, 59, 63, 73 verso, 75, 105, 143, 145, 167 verso, 169 verso, 175 verso, 177 verso, 185 recto-verso, 187 verso, 201, 203, 209, 211 verso, 217 verso, 231, 241, 247 verso, 251 verso, 259, 269 verso, 271, 273, 281 recto-verso, 283 verso, 285, 297 verso-303 verso, 305 verso, 311-315). Among the items pasted or tipped into the volume are some eighteen letters, 1875-1902, addressed mostly to Thomas, relating to the book's production and contents and to the original manuscripts (ff. 8 verso, 10 recto-verso, 12, 16, 20, 53, 55, 105, 211, 293, 307-310), from correspondents including E. L. Barnwell, Melksham, June-December [1881] (ff. 10 verso, 12), Edward Breese, Porthmadog, October-December 1875 (ff. 10, 20, 307-310), R. H. Howard, Wigfair, 1882-1883 (ff. 8 verso, 293), H[ugh] R[obert] Hughes, Kinmel Park, 1882, 1902 (ff. 53, 55), and Egerton G. B. Phillimore, 27 May 1887 (f. 10); further printed and manuscript items relating to the publication of the volume, [1882]-1883 (ff. 2 recto-verso, 12, 295 verso, 304 verso); tracings by Thomas of manuscript material and drawings, in particular key entries from British Library Add. MS 33373 and NLW MS 12447A (ff. 8, 16 verso, 20 verso, 32, 42 verso, 46 verso, 55 verso, 77 verso, 127 verso, 173 verso, 175 verso, 177 verso, 205, 211, 217 verso, 266, 267 verso, 279 verso, 281 verso, 296 verso); photographs (ff. 173 recto-verso, 269); drawings by Thomas of local gentry houses (ff. 48 verso, 63, 143 verso, 165 verso, 189, 241); a fragment of parchment, [?17 cent., second ¼], containing a list of baptisms, etc., for 1613-1627 (f. 81); together with various press cuttings, 1881-1898, transcripts, etc. Loose items have been placed in an archival envelope (ff. 307-327).