| Reference Number | WJTS/2/23 |
| Title | 26 - Population age profile, 1861-1911 |
| Date | [1910s] |
| Creator Name | Mason, Thomas Holmes, 1877-1958 |
| Thompson, Sir William John, 1861-1929 |
| Description | Glass lantern slide showing a comparison of the ages of the male and female population of Ireland as recorded in each of the census from 1861 to 1911. |
| Extent | 1 slide |
| Term | Censuses |
| Population Characteristics |