| Reference Number | Title | Date |
| RCPI/5/4/6/1887 | Fellowship Nominations 1887 | 1887 |
| VM/1/2/C/30 | Ephraim MacDowel Cosgrave | [1925] |
| CSFH/1/2/1/6 | Annual reports of Cork Street Fever Hospital and Beneavin Convalescent Home | 1900-1909 |
| CSFH/1/2/1/5 | Annual reports of Cork Street Fever Hospital | 1889-1899 |
| VM/1/1/4 | Roll of Presidents Vol II - 1801-1914 | 1915 |
| EMC/4 | Photographic Society of Ireland Medal | 1898 |
| EMC/5 | Insignia of the Order of the Hospital of Saint John of Jerusalem | 1898 |
| EMC/6 | Portrait of Ephraim MacDowel Cosgrave | 1916 |
| RCPI/2/3/3/15/28 | Recommendations of the Joint Committee on the College of Nursing, Dublin | 13 June 1916 |
| RCPI/2/3/2/13/71 | Letter to the Registrar, Sir Patrick Dun's Hospital, Dublin | 20 October 1914 |
| RCPI/2/3/2/13/73 | Letter to E. MacDowel Cosgrave, President RCPI | 20 October 1914 |
| RCPI/2/3/2/13/74 | Letter to the Secretary, Royal Bank of Ireland, Dublin | 20 October 1914 |
| RCPI/2/3/2/13/76 | Letter to the Secretary, Bank of Ireland, Dublin | 20 October 1914 |
| RCPI/2/3/2/13/78 | Letter to the Manager, Munster and Leinster Bank, Lr Baggott St. | 20 October 1914 |
| RCPI/2/3/2/13/115 | Letter to M J R Hayes, FRCSI, Dublin | 5 July 1915 |
| RCPI/2/3/2/13/137 | Letter to C M Benson, Secretary to Council, RSCI | 23 December 1915 |
| RCPI/2/3/2/13/151 | Letter to the Secretary to Council, Royal College of Surgeons in Ireland | 6 March 1916 |
| RCPI/2/3/1/58/Tau67 | Donation of portrait of Dr Apjohn | 11 - 13 March 1916 |
| RCPI/2/3/1/58/Tau67/1 | Letter from MacDowel Cosgrave, 5 Gardiner Row, Dublin | 13 March 1916 |
| RCPI/2/3/1/58/Tau67/2 | Letter from Rebecca Hime, Hillmount, Londonderry to Ephraim MacDowell Cosgrave, Dublin | 11 March 1916 |
| MIMM/1916-5 | Surface Clinical Thermometer | 1850-1899 |
| MS/120 | Irish medical bookplates | Eighteenth - twentieth century |
| EMC/7 | Barnes Microscope | 1900-1949 |