Lieutenant O.F.J. Hogg of No. 2 AA Section in III Corps of the British Army was the first anti-aircraft gunner to shoot down an aircraft. It happened on Sept 23, 1914 in France.
First anti-aircraft gunner William Lawrence Sr Omnibit 10-30-19

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Lieutenant O.F.J. Hogg of No. 2 AA Section in III Corps of the British Army was the first anti-aircraft gunner to shoot down an aircraft. It happened on Sept 23, 1914 in France.