| Reference Number | WJTS/3/8 |
| Title | 30 - Population age groups, 1901-1911 |
| Date | [1910s] |
| Creator Name | Mason, Thomas Holmes, 1877-1958 |
| Thompson, Sir William John, 1861-1929 |
| Description | Glass lantern slide showing the proportion of the population by age group in 1911 and 1901. |
| Extent | 1 slide |
| Term | Censuses |
| Population Characteristics |