| Entry Type | Person |
| Surname | Wallis |
| Forenames | Barnes |
| Pre Title | Sir |
| Epithet | Born Ripley, Derbyshire; scientist, engineer and inventor. Invented the "bouncing bomb" used by the Royal Air Force in Operation Chastise (the "Dambusters" raid) to attack the dams of the Ruhr Valley during World War II. The practice runs were at Derwent Dam, Derbyshire. |
| Dates | 1887-1979 |
| Authorised Form of Name | Wallis; Sir; Barnes (1887-1979); Born Ripley, Derbyshire; scientist, engineer and inventor. Invented the "bouncing bomb" used by the Royal Air Force in Operation Chastise (the "Dambusters" raid) to attack the dams of the Ruhr Valley during World War II. The practice runs were at Derwent Dam, Derbyshire. |
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