| A Guide to the Cathedral Church of S. Columb, Derry | Hayes, Richard | Monograph or Collective Volume | Sentinel Office [printer] | 1916 |
| A history of Moville and its neighbourhood | Montgomery, Henry | Monograph or Collective Volume | Crawford Norris and C. Doherty | 1992 |
| A particular of the howses and famyles in Londonderry, 15 May 1628 | King, R. G. S. | Monograph or Collective Volume | Sentinel | 1936 |
| A ‘sentinel(s) of our liberties’ : Archbishop John Hughes and
Irish-American intellectual negotiation in the Civil War era | Kelly, Mary C. | Article in Journal | | 2010 |
| A ‘sentinel(s) of our liberties’ : archbishop John Hughes and Irish-American intellectual negotiation in the Civil War era | Kelly, Mary C. | Article in Journal | | 2010 |
| Carlow evictions in 1832, 'Carlow Sentinel', 25th February 1832 | | Article in Journal | | 2002 |
| Changing attitudes to the 1916 Rising | Shannon, James P. | Article in Journal | | 2017 |
| Cumber Presbyterian church and parish | Rutherford, Jonathan | Monograph or Collective Volume | Sentinel | 1939 |
| Early medieval sentinel warrior burials | O'Brien, Elizabeth | Article in Journal | | 2008 |
| First non-stop flight across the Atlantic | Malott, R. K. | Article in Journal | | 1969 |
| Sentinel towers: the Irish treaty ports, 1914-1945 | O'Sullivan, Clive John | Thesis | | 1999 |
| Silent sentinels : [the Irish treaty forts] | MacCarron, Donal | Monograph or Collective Volume | Nonsuch | 2008 |
| The Frontier Sentinel - Nuachtán a sheas leis an athbheochan: Catalóg an ábhair Ghaeilge a foilsíodh ann ó 1904 go 1908 | Trimble, Gearóid | Article in Journal | | 2009 |
| The Murray Club centenary : a hundred years of history of the Murray Club of apprentice boys of Derry | Milligan, C. D. (Cecil Davis) | Monograph or Collective Volume | Londonderry Sentinel | 1947 |
| The Parish of Dungiven : memoirs of bygone days | Kelly, James, Rev. | Monograph or Collective Volume | Londonderry Sentinel (Printer) | 1935 |
| The walls of Derry : their building, defending, and preserving. 2 pts. | Milligan, C. D. (Cecil Davis) | Monograph or Collective Volume | Sentinel | 1948 |
| Three castles : a sentinel in stone watching the north-west frontier of Gaelic Leinster | Ferguson, Kenneth | Article in Journal | | 2000 |
| Ulster's protest, her industrial political, imperial reasons for refusing to submit to Home rule, an appeal to Great Britain | King, R. G. S. | Monograph or Collective Volume | Sentinel | 1914 |
| Ulster's refusal to submit to a Roman Catholic Parliament | King, R. G. S. | Monograph or Collective Volume | Sentinel | 1914 |
| Walker of Derry | Kerr, W. S. | Monograph or Collective Volume | Londonderry Sentinel | 1938 |