Dennison, James
| Title | Mr |
| Forenames | James |
| Surname | Dennison |
| Gender | m |
| Role | Mill owner |
| Address | Mile End Wind and Steam Mill, Portsmouth |
| Region | Hampshire |
| Country | United Kingdom |
| Start date | 1844 |
| End date | 1865 |
| Original document | Windmills of Hampshire and the Isle of Wight |
| Compiler | Pru Barrett |
| Notes | Large and powerful windmill plus steam mill. Supplied bread to the Government for the Army and Navy. By 1861 wanted to retire, unable to sell business but in 1863 it caught fire; mills dont seem to have been used after then. Also was last occupier of Old Dock Mill, and gave it up in 1865. |