Trade unions
D
| Full Name | Short Name | Notes |
|---|---|---|
| DATA | DATA | |
| Derbyshire Miners' Association | DeMA | |
| Dock, Wharf, Riverside and General Workers' Union | DWRGWU | |
| Draughtsmans | DATA | Draughtsmans Union |
| Draughtsman's Union | DATA | |
| Durham Colliery Mechanics' Association | DCMA | |
| Durham Miners Association | DMA |