Letters and copies of letters from the Reverend John Roberts, Llanbryn-mair, and letters to him from various correspondents, together with one letter addressed to his son, the Reverend Samuel Roberts ('S.R.'). The letters from John Roberts are to Revd. Joseph Gilbert, Hull, 1825 (sending a copy of an extract from a letter received from Mr. Jenkin Lewis of Newport [cf. The Evangelical Magazine, 1825, pp. 459-60, 'Dr. Williams' Theology']), Mrs. [David] Morgans, [Forge, Henllan Amgoed], 1831- 1832 (condolence on the death of Mr. Morgans), and John Davies, Dolgoch, 1831 (advice on leaving Llanbryn-mair for Carmarthen), the letters to Mrs. Morgans and John Davies being copies made by [the Reverend] John Breese, Carmarthen, 1835, for his cousin, Revd. Samuel Roberts, Mary [B - ], 1833 (religious sentiments) (?copy), the Reverend David Rees, Llanelly, 1833 (sympathy at a time of great anxiety), the writer's son, John Roberts, Student, Newtown, 1831 (advice on leaving Llanbryn-mair to enter the Academy), and Miss Brees (copy, undated and incomplete) (pleasure at the religious feeling in her papers). The letters addressed to John Roberts are from [the Reverend] Peter Edwards, Wem, [18]25 (he is in want of an assistant and had thought of the addressee's son as a likely person) (with copy reply), [the Reverend] Jas. Griffiths [St. Davids] Treliwyd, 1833 (mention of various meetings, outline of a sermon, a report concerning Mr. J. Elias), Willm. Robinson, Chesterfield, 1825 (the addressee's son and their pastorate) (with draft reply), George (and Jane) Roberts, Ebensburg, Cambria County, 1800, 1809 and 1821 (a religious revival in the greater part of New England, family and other news, etc.), and Sarah Yallowley, Bryn y Gyn, 1826 (concerning books). Most of the letters are in English and some of those from John Roberts have been translated into Welsh and published at least in part [by 'S.R.'] in Cofiant y Parch. John Roberts o Lanbrynmair (Llanelli: David Rees a John Thomas, 1837).

A holograph letter from the Rev[erend] Owen Ellis, Llanuwchllyn, to Mrs. [Jones] Davies, Tregarth [co. Caernarvon], 1926 (condolences on the death of recipient's brother [the Reverend W. M. Tudor. See NLW MS 12672E above]); a holograph letter from [the Reverend] John Owen Thomas (on active service with the British Expeditionary Force), France, to [ ], 1917 (the work being accomplished by the writer, his brother [the Reverend] H. Wynne Thomas, the Reverend Edward Griffiths, Felinheli, and the Reverend H. Jones Davies, in arranging church services for Welsh soldiers, particular reference to the work of the Reverend Jones Davies amongst Welsh and English soldiers, hopes that his services could be spared for a further period); three holograph letters to the Reverend H. Jones Davies, from W. Sylvanus Jones, Shrewsbury, 1934 (personal, the death of a mutual acquaintance, Joseph Evans, the difficulties of a minister at Bath Road [Calvinistic Methodist] church [Wolverhampton], a Welsh service at Leamington), Robert M. Roberts, Taylor, P. A., U[nited] S[tates of] America, 1923 (personal, the writer's return to America after a visit to Wales, comments on, and news received relating to, Hermon [Calvinistic Methodist] church [Douglas Hill], and the writer's native district of Mynydd [parish of Llandygai, co. Caernarvon], comments on the prohibition laws in America, the new pro-prohibition governor [of Pennsylvania], a months old railroad strike in the state), and [the Reverend] John Owen Thomas, Bala, 1919 (a promise to mention recipient's name to any church seeking a minister); and a national health and pensions insurance card, recording contributions paid by the Rev[erend] H. Jones Davies, 1926-1930.

Three letters to Evan Roberts, father of John Roberts (Senior) and George Roberts, one of them, 1808, from A. B. Crosse, Streatham, signing herself 'your sincere friend & Landlady', to Mr. Evan Roberts, Miller, Llanbrynmair (instructions concerning trees, etc.), the other two, 1804 and 1811, from G[eorge] Roberts [Ebensburg] to his parents (addressed 'Mr Evan Roberts, Dolgadvan Mills, Llanbrynmair . . . ') (in the earlier of the two how the revival continues to gain ground and has recently come within 25-30 miles of them, criticism of the Presbyterians before the revival came, some account of Rees Morgan and Grace, and the prosperous state of the nation, and in 1811 sending a copy of a letter from Grace Morgan [née Roberts] to her parents).

Letters and postcards to J. H. Davies (many relating to publications by the writers) from the following correspondents: John Ballinger, Cardiff, 1907, and Aberystwyth, 1915 (enclosing a letter from Francis Green to John Ballinger relating to a calendar of deeds and documents) (2), F. F. Bretherton (general secretary of the Wesley Historical Society), Sunderland, 1920 (writer's book on early Methodism in Chester, the new Proceedings), C. H. Browning, Ardmore, Penna., 1913 (The Welsh Settlement of Pennsylvania, Prospectus for Thomas Allen Glen, Welsh Founders of Pennsylvania, etc.), D. Davies, 1915 (loan of copies of Seren Gomer), David Davies, Harlech, 1913-14 (3) (Ardudwy a'i Gwron), D. Caxton Davies for William Lewis, Printers, Ltd, Cardiff, 1924 (The Letters of Goronwy Owen), J. Hugh Edwards, House of Commons, 1912 (material relating to T. E. Ellis for a book on the rise and development of Welsh nationality), A. Owen Evans, Llanfaethlu Rectory, 1918 and 1922 (2) (his researches and publications, enclosing a leaflet, 1880, about spitting in chapel), David Evans, Whitland, [19]15 (enclosing poster concerning Parke sale, some of the articles had belonged to Daniel Rowlands, Llangeitho), Evan Evans, Aberystwyth, 1909-10 (notices of Tregaron Pension sub-committee meetings in connection with The Old Age Pensions Act 1908), E. Vincent Evans, London [19]08 (Bibliography [of Welsh ballads]), J. Ceredig Evans, New Quay, [19]22 (arrangements to stay in Aberystwyth), Tom Evans, Felinfach, [19]08 (application for the post of Dairy Instructress at the University College of Wales by his sister, Miss Emma Evans), H. M. Green (on behalf of the Principal), University College of Wales, Aberystwyth, 1905 (enclosing photographs [wanting]), T. Mortimer Green, Registrar, University College of Wales, Aberystwyth, 1905 (notice of meeting), G. Stewart Griffiths, Liverpool, [19]24 (family history), H[ugh] O[wen] Hughes, Newport, 1907 (writer's application for the post of Assistant Commissioner under the Small Holdings and Allotments Act 1907, testimonials enclosed), David Jones, [Melbourne and London] 'off Port Said' [19]24 (appreciation of The Life and Opinions of Robert Roberts), M. H. J[ones], [1918] (on a postcard to M. H. Jones from the Reverend R. James, Llanwrtyd, 1918, enquiring about the date of birth of William Williams, Pantycelyn), Mostyn [Lewis], London, undated (notice of writer's arrival in Aberystwyth), W. A. Lewis, Liverpool, 1923 (John Jones ('Myrddin Fardd'), Enwogion Sir Gaernarfon, 'Myrddin's opinion regarding orthography, etc.), T. R. Morgan, Swyddffynon, 1922 (Dafydd Jones o Gaeo, etc.), T. J. Owen, Marsh, Huddersfield, 1922 (2) (pamphlets attributed to Dafydd Jones o Gaeo), Alfred Neobard Palmer, Wrexham, 1905 (Roman Station at Holt and its Welsh name), J. W. P. Parry, N[ational] P[rovincial] Bank, Aberystwyth, 1924 (Mrs Hughes's dividends, financial matters), F. E. Rees, Cardiff, 1922 (enclosing draft regulations and standing order of the University of Wales Guild of Graduates), T[homas] Richards, Maesteg, 1923 (his researches relating to the Puritans), George Stinchcombe, Fishponds, Bristol, 1911 (his family connection with Thomas Charles of Bala, his application for the post of Inspector under the National Insurance Scheme), R. M. Thomas, Carmarthen, 1907 (notice of Welsh Church Commission meeting), J. L. Wheatley, National Museum of Wales, Cardiff (resolution relating to government grants, etc.), Hannah Williams, Llandegai, 1922 (thanks for copy of 'Morris' letters'), H. J. Williams, Calvinistic Methodist Book Agency, Carnarvon, 1923 (binding of Enwogion Sir Gaernarfon), O. Gaianydd Williams, Rowen, 1923 (enquiry regarding an edition of Thomas Richards (Coychurch) dictionary by the Trefriw press), R. Peris Williams, Wrexham, undated (circular regarding a movement to erect a memorial column on the grave of Morgan Llwyd in Rhosddu, Wrexham), T. Meredith Williams, Llanddewi Vicarage, Aberayron, 1916 (pedigree of Archdeacon Meredith, Meredith family of Ffosybleiddiaid), and Tom Williams, Aberystwyth, [19]21 (spare copies of Cymru'r Plant). There are also a few other items, including papers relating to (?) The Student and letters from the following: H. Tobit Evans, Carmarthen, 1901, [to D. Silvan Evans] (enclosing two booklets by writer's daughter and her friend, the dictionary), [W. A. Griffiths], Devonport, [19]06 (return of 'the old memorandum book, Richard Griffiths of Trederwen) (incomplete), J. D. Hughes, Rhosddu, Wrexham, [18]93 (enquiring regarding the report in Montgomeryshire Collections relating to the trial concerning the Llandysilio estate and the Jones claimant [see Mont. Coll., Vol. VIII (1875) p. 249-64]), M[orris] R[oberts], Rhosybol Vicarage, Rhosgoch, 1916 [to [the Reverend William (John) Morgan] 'Penfro' (contribution to Y Cyfaill [Eglwysig]), Thomas C. Smith, London, 1861, to the editor of The Builder (pamphlet on slate quarries), and ?W[illiam] T[homas], Park Glas, Carmarthen, undated (Testament Newydd 1641 etc.).

Twenty-four letters, etc., 1805-1885 and undated, to and from various persons. The details in alphabetical order are as follows: Evan R. Bebb, New York, 1835, to the Reverend Gardiner Spring, D. D., (in) England ( introducing the writer's kinsman, the Reverend Samuel Roberts), (?) John [ i.e. Sir John] Conroy, Arbor field Hall, 1851, to an unnamed correspondent (thanking him for the perusal of certain papers, education, dissenters and the church school), Francis Darwin, Down, Beckenham, [1882], to Mrs. Howell (an accident to the addressee's letter), Col. and Mrs. Edwards, Greenfields, undated (2) (invitations, one to Miss Davis and Miss Matthews, the other to Mr. and Mrs. Matthew Lewis), Sir James Graham, Whitehall, 1844, to Mr. Arber (fearing inability to accept the offer to see the establishment in Upper Ogle Street, an order for Mr. Arber and friends to see the Pentonville prison (enclosure wanting)), Geo[rge] Hadfield, Manch[ ester], 1835, to an unnamed correspondent [? in Birmingham] (the board, the secretary of which was Thomas Bury, Esq., would give due consideration to the chapel case recommended by the addressee and the other gentlemen, the example set by lovers of religious liberty at (?) Birmingham, Lady Hewley's Charity suit), Abraham] Howell, Welshpool, to D[avid] Howell, M[achyn]lleth, 1885 (telegram arranging to be with Howell), D[aniel ?] Howell, Toledo, Ohio, 1890, to his niece [ ] (sympathy on the death of her father), D[avid] Howell, Machynlleth, 1877, to Sir Watkin W. Wynn (copy) (the name 'Caefen'), Eleanor [? Howell], Dolguog, Machynlleth, n.d., to her uncle [ ] (pleasure at hearing of his coming visit), Wm. Howell, n.d., to Elin Howell (family and other matters), Wm. Wms. Jones, Machynlleth, 1852 (circular) (inviting contributions towards the erection of an infant school in the town of Machynlleth to commemorate the birth of a son and heir to the house of Plas Machynlleth, with a list of subscriptions), W[illiam] L[eader] Maberly, General Post Office [London], 1837, to the Right Hon. C. W. Wynn, M.P. (consent again on the part of the Postmaster General to the setting up of a three day foot post from Newtown through Carno to Llanbrynmair), Edward Morgan, Dyffryn, [18]68, to the Reverend John Roberts (the committee of the (Dyffryn) British School have asked him to write to the addressee's brother, the Reverend Samuel Roberts, to request him to give a lecture on America in aid of the school) (with a copy of 'S.R.'s reply, in shorthand), Evan R. Morgan, Ebensburg, 1857, to his aunt and relations in Llambrinmair [sic] (Cousin Samuel Roberts's brief visit, family news), the Countess of Powis, Powis Castle, n.d. ( formal invitation to Captain and Mrs. Lewis to a ball) (with a visiting card bearing the name 'Mr. M. E. Lewis'), George (and Jane) Roberts, [Ebensburg], 1805 and 1835 (2), the earlier letter [to Jane Roberts's parents] addressed 'Mr. Thos. Edward, Cwmderwen [Llanerfyl] . . .' (their circumstances, his work as constable and assessor, various items of news) and the other letter addressed to Edward Thomas, Canon, Parish of Lanerfil [? Jane Roberts's brother] (their wish to receive letters, the writer's health, family news, religious affairs, the death of Wm. Brees formerly of Sychnant, expenditure by Pennsylvania on canals and rail-roads), and George Roberts alone, Ebensburg, 1853, to his sister, Mrs. Elinor Howells ( thanking her for asking Daniel [? Howell] to send him a copy of her letter (giving an account of the death of Anne Williams), sympathy for Isaac Williams and his little orphan children, mention of Lewis Thomas and his wife, his own state of health) (with a note by Elinor Howell concerning the letter - her brother died the following November [1853]), M. Roberts, Conway, 1885, to Mr. Howell (re mourning-cards), (?) James Stratten, Hamilton Terrace [London], 1847, to Mrs. Arber (information concerning Mr. Newell, 'one of the most excellent of men'), W. Keinion Thomas, [Conway], 1885, to D[avid] Howells, Aberdyfi (a printed intimation of the death of [ the Reverend Samuel Roberts] 'S.R.' and the funeral arrangements), and Sir Watkin Williams Wynn, Wynnstay, n.d., to Mrs. Lewis, Brynn Glas, Llanvair ( formal invitation to Captain and Mrs. Lewis to a ball).

An exhibition catalogue, 2011, compiled from research undertaken by the donor to celebrate over three hundred years of contributions by the Welsh in Pennsylvania and their lasting legacy.