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Manchester and Ireland District |
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| Inspector : John Gerrard. |
| Junior Inspector : G. B. Harrison. |
| Junior Inspector : F. N. Siddall. |
| Sub-Inspector of Mines : J. Duncan. |
| Sub-Inspector of Quarries : O. Jones. |
| Inspector of Horses : D. Morris. |
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Liverpool and North Wales District |
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| Inspector : A. D. Nicholson. |
| Senior Inspector : D. H. F. Mathews. |
| Senior Inspector : G. J. Williams. |
| Junior Inspector : O. R. Jones. |
| Junior Inspector : W. H. Murray. |
| Sub-Inspector of Mines : R. W. Corless. |
| Sub-Inspector of Mines : W. Roberts. |
| Sub-Inspector of Quarries : Rhys Williams. |
| Inspector of Horses : D. Morris. |