| Reference Number | WJTS/2/12 |
| Title | 15 - Comparison of Irish population, 1841-1911 |
| Date | [1910s] |
| Creator Name | Mason, Thomas Holmes, 1877-1958 |
| Thompson, Sir William John, 1861-1929 |
| Description | Glass lantern slide showing the comparison of the size of the Irish population by decade from 1841 to 1911. |
| Extent | 1 slide |
| Term | Censuses |
| Population Characteristics |