MS.Add.9407/1: Letters to George De La Poer Beresford, Bishop of Kilmore and Ardagh: [1-15] Lord John Beresford, Archbishop of Armagh (1820-1834);  Marcus Gervais Beresford (1841);  William Freeman (1813);  John Weir (1839);  2nd Marquess of Waterford (1810).
MS.Add.9407/2: Letters from English and Welsh bishops, deans and dignitaries: [1-18] Charles Longley, Archbishop of Canterbury (1862-1868); [19-36] Archibald Campbell Tait, Bishop of London, Archbishop of Canterbury (1862-1878);  James Atlay, Bishop of Hereford (1873); [38-39] Charles Baring, Bishop of Durham (1862-1876); [40-41] Robert Bickersteth, Bishop of Ripon (1862-1869);  Charles James Blomfield, Bishop of London, to Walter Kerr Hamilton, Bishop of Salisbury (1854); [43-44] Edward Harold Browne, Bishop of Ely, later Winchester (1882); [45-46] Piers Claughton, Archdeacon of London (1876);  Augustus Duncombe, Dean of York (1879);  Constantia Ellicott (undated);  James Fraser, Bishop of Manchester (1875);  John Graham, Bishop of Chester, to J.H. Hayes (1865); [51-52] Walter Kerr Hamilton, Bishop of Salisbury (1855);  Lord Arthur Harvey, Bishop of Bath and Wells (1884); [54-57] John Jackson, Bishop of Lincoln, later London (1863-1878);  John Lonsdale, Bishop of Lichfield (1864); [59-61] William Connor Magee, Bishop of Peterborough (1869-1878);  George Moberly, Bishop of Salisbury (1871);  Alfred Ollivant, Bishop of Llandaff (1874);  John Pelham, Bishop of Norwich (1873);  George Selwyn, Bishop of New Zealand, later Lichfield (1867);  Charles Sumner, Bishop of Winchester (1862); [67-71] William Thomson, Archbishop of York (1863-1875); [72-75] Samuel Wilberforce, Bishop of Oxford, later Winchester (1862-1864); [76-78] Christopher Wordsworth, Bishop of Lincoln (1870-1882).
MS.Add.9407/3: Letters from Irish bishops, deans and dignitaries: [1-69] Lord John Beresford, Archbishop of Armagh (1853-1862);  Richard Whately, Archbishop of Dublin (1863); [71-91] Richard Trench, Archbishop of Dublin (1868-1870); (92-93) Robert Daly, Bishop of Cashel, Emly, Waterford, and Lismore (1863-1869);  Marcus Beresford to Henry Irwin, Archdeacon of Elphin (1861); [95-96] William Fitzgerald, Bishop of Cork and Cloyne, later Killaloe, Kilfenora, Clonfert, and Kilmacduagh (1862-1869); [97-111] Charles Leslie, Bishop of Kilmore (1854-1870);  Thomas Plunket, 2nd Baron Plunket of Newton, Bishop of Tuam, Killala and Achonry (1864).
MS.Add.9407/4: Letters from American bishops: [1-2] Gregory Bedell, Bishop of Ohio (1880-1881);  A. Cleveland Cox, Bishop of Western New York (1871);  Alfred Lee, Bishop of Delaware (1871);  Charles MacIlvaine, Bishop of Ohio (1871);  Horatio Potter, Bishop of New York (1871);  William Odenheimer, Bishop of New Jersey (1871);  William Stevens, Bishop of Pennsylvania (1871);  Henry Whitehouse, Bishop of Illinois (1871);  William Whittingham, Bishop of Maryland (1871).
MS.Add.9407/5: Letters from politicians: [1-3] James Hamilton, 1st Duke of Abercorn (1874-1875);  to ___ Annesley (undated, but pre-1862); [5-8] John Ball, Lord Chancellor of Ireland (undated; 1869); [9-52] Alexander Beresford-Hope (1860-1885); [53-62] Hugh Cairns, 1st Earl Cairns (1864-1879); [63-64] George Howard, 7th Earl of Carlisle, Lord Lieutenant of Ireland (1862-1863);  James Stopford, 5th Earl of Courtown (1867); [66-67] William Ewart Gladstone (1868-1876); [68-80] Sir George Grey and others (including Lord George Beresford, Archbishop of Armagh, A. Irwin, and Edward Eliot, 3rd Earl of St. Germans) (1862-1865);  John Wodehouse, 1st Earl of Kimberley (1866); [82-86] Richard Bourke, 6th Earl of Mayo (1867); [87-104] Sir Joseph Napier, Lord Chancellor of Ireland and member of the Ritual Commission; [105-108] Henry Temple, 3rd Viscount Palmerston (1863); [109-131] Sir Robert Peel, 3rd baronet, Chief Secretary of Ireland (1863-1865); [132-133] Archibald Stephens, recorder (1864); [134-135] Richard Bethell, 1st Baron Westbury (1864).
MS.Add.9407/6: Other letters, including those of [3-4] Brabazon Disney, Dean of Armagh (1871);  Charlotte Hawkey, poet (1871); [11-13] Alexander Irwin (c. 1862-1869); [21-22] William Kemp, secretary, Royal Commission on Ritual (1867-1870);  George Mackarness, Bishop of Argyll and the Isles (1857); [29-31] John Mackay, Liverpool (1852);  Marcus Rainsford, Vicar of Dundalk (1865);  William Reeves, Bishop of Down, Connor and Dromore (1863); [40-61] Thomas Robinson, Astronomer, Armagh Observatory (1862-81); [65-81] Evelyn Shirley, archaeologist (1870-1882);  R.H. Southwell (1856); [83-90] William Sparrow, Rector of Moneymore (1875); [95-96] James H. Todd, Irish scholar, Professor of Hebrew (1864);  Philip Tocque, Church of England minister, Toronto (1882);  Edmond De La Poer, titular 18th Baron Le Power and Coroghmore.
MS.Add.9407/7/1-15: Beresford's draft letters to unidentified people.
MS.Add.9407/8: Beresford's papers. [1-6] Personal and financial; [7-22] Religious, including [9-10] MS confirmation lists, places and numbers, undated; [16-19] Marcus Beresford, notes for speeches to Church gatherings, undated;  Marcus Beresford, draft, part of a visitation charge, on confirmations, c. 1882; [23-28] Political, including  Notes, Heads of a Bill to unite Irish benefices, sale of glebe houses, and a list of 17 Deaneries and Chapters to be suppressed where dioceses had been united, undated;  Notes for a speech in the House of Lords against a Bill injurious to the Irish Branch of the Church, about the transfer of ownership of Church assets, undated;  House of Lords speech conceding defeat over a Bill injurious to Irish Church revenues, undated; other papers, including  Augustus Stafford, poem, 'The Cross', undated.
MS.Add.9407/9/1-51: Later family papers, including  Robert Knox, Bishop of Down, Archbishop of Armagh, to George De La Poer Beresford (c. 1885).