| 'Rus in urbe': Samuel Barker's Waterford city garden | Fraher, William | Article in Journal | | 2008 |
| A history of the English people in the 19th century | Halévy, Élie, 1870-1937 ; Barker, D. A. ; Watkin, E. I. | Monograph or Collective Volume | NA | 1949 |
| ABC for Book Collectors | Carter, John : Barker, Nicolas | Monograph or Collective Volume | Oak Knoll Press and The British Library | 2004 |
| An account of the ... fever lately epidemical in Ireland etc. 2 vols. | Barker, FrancisCheyne, John | Monograph or Collective Volume | | 1821 |
| Barkerville cemetery/Richfield cemetery - BC, Canada | Bayliss, Pat | Article in Journal | | 2001 |
| Billy Moore | Barker, Alan | Article in Journal | | 1981 |
| British military, part II : John Crowe, soldier, labourer, overseer, hotel keeper and farmer | Barker, G. J.Wood, J. R. T. | Article in Book | | 1992 |
| Cloyne cathedral | Ridley Barker, J. K. S. | Article in Book | | 1994 |
| Connected communities : emerging narratives in the study of coastal promontory forts in the north-eastern Atlantic | Pollard, Edward ; Driver, Toby ; Corns, Anthony ; Henry, Sandra ; Shaw, Robert ; Shine, Linda ; Barker, Louise ; Davies, Sarah ; Robson, Patrick | Article in Book | | 2024 |
| From Galway to Maine. The story of an immigrant family | Barker, Matthew J | Article in Journal | | 1996 |
| George Russell : a Nevada pioneer | Barker, Marcia | Article in Journal | | 1994 |
| Gladstone and radicalism : the reconstruction of Liberal policy in Britain, 1885-94 | Barker, M. | Monograph or Collective Volume | NA | 1975 |
| Illuminated manuscripts in the Bodleian library, Oxford : Concordance of Bodleian shelf marks for vols. 1-3 and addenda | Barker-Benfield, B. C. | Monograph or Collective Volume | | 1974 |
| In praise of Ulster | Hayward, Richard | Monograph or Collective Volume | Barker | 1938 |
| Ireland in the last fifty years (1866-1916) | Barker, Ernest, Sir, 1874-1960 | Monograph or Collective Volume | | 1917 |
| Ireland in the last fifty years, 1866-1918 | Barker, Ernest, Sir, 1874-1960 | Monograph or Collective Volume | Clarendon Press | 1919 |
| Ireland, 1760-1855 | Simes, Douglas | Article in Book | | 2002 |
| Irish settlers beyond the tiers : Mount Barker South Australia, 1836-1886 | Herraman, Ann | Article in Journal | | 2001 |
| John Ford and the Feeney family of Galway and Portland, Maine | Barker, Matthew J | Article in Journal | | 1998 |
| Leinster and the city of Dublin | Hayward, Richard | Monograph or Collective Volume | Barker | 1949 |
| On the Celtic-American fringe : Irish-Mexican encounters in the Texas-Mexico borderlands | Barker, Marian J. | Article in Journal | | 2007 |
| Remembering Sion: a chronicle of storm and quiet | Ryan, Desmond | Monograph or Collective Volume | [Arthur Barker, Ltd.] | 1934 |
| Roger Casement | Parmiter, Godfrey Vincent de Clinton | Monograph or Collective Volume | A. Barker | 1936 |
| Samuel Barker's Waterford city garden: Lord Chief Baron Willes description of 1760 | Fraher, William | Article in Journal | | 2009 |
| School libraries (c. 1540 to 1640) | Barker, William | Article in Book | | 2006 |
| Shadows : inside Northern Ireland's Special Branch | Barker, Alan | Monograph or Collective Volume | Mainstream | 2004 |
| The landed families of Ballybrown | Potter, Matthew | Article in Journal | | 2018 |
| The Lough Patrick pilgrimage, County Tyrone | Barker, TedSimon, Ben | Article in Journal | | 2001 |
| The loves of George Bernard Shaw | Du Cann, C. G. L. | Monograph or Collective Volume | Barker | 1963 |
| The phoenix flame. A study of Fenianism and John Devoy | Ryan, Desmond | Monograph or Collective Volume | Barker | 1937 |
| The sword of light : from the Four Masters to Douglas Hyde, 1636-1938 | Ryan, Desmond | Monograph or Collective Volume | Barker | 1939 |
| This is Ireland : Connacht and the city of Galway | Hayward, Richard | Monograph or Collective Volume | Arthur Barker Ltd. | 1952 |
| This is Ireland : Mayo, Sligo, Leitrim and Roscommon | Hayward, Richard | Monograph or Collective Volume | Arthur Barker Ltd. | 1955 |