Barr, John
| Forenames | John |
| Surname | Barr |
| Gender | m |
| Role | Miller |
| Address | Gringley-on-the-Hill tower mill |
| Region | Nottinghamshire |
| Country | United Kingdom |
| Start date | 1885 c. |
| Original document | Windmills in Nottinghamshire: a historical account of existing mills and mill remains |
| Compiler | Hine/Harverson |