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Henry Wade
Major Sir Henry Lancelot Aubrey-Fletcher, 6th Baronet, also known by his pen name Henry Wade, was Lord Lieutenant of Buckinghamshire from 1954 to 1961. He was also one of the leading authors during the Golden Age of Detective Fiction. He is known for his Inspector Poole novels, which started with The Duke of York's Steps (1929).
Excerpt from Wikipedia, available under CC BY-SA 4.0.
Books

The floating admiral
2011
ISBN 9780007414468