| D D Sheehan, BL, MP, his life and times | Dillon, John | Monograph or Collective Volume | Foilsiúcháin Éireann Nua | 2008 |
| D. D. Sheehan, why family left Cork in 1918, supplement to the pamphlet D D Sheehan : why he left Cork in 1918 | Ó Síocháin, Niall | Monograph or Collective Volume | Foilsiúcháin Éireann Nua | 2013 |
| D.D. Sheehan, BL, MP, his life and times | Dillon, John | Monograph or Collective Volume | Foilsiúchain Éireann Nua | 2013 |
| Ireland : a journey into lost time | Ó Síocháin, P. A. | Monograph or Collective Volume | Foilsiuchain Éireann | 1982 |