John Battersby Crompton Lamburn (1893–1972) was a British writer who wrote fiction before the Second World War under the name John Lambourne and natural history studies afterwards under the name John Crompton.
He was the younger brother of *Just William* author Richmal Crompton.
See:
John Battersby Crompton Lamburn at Wikipedia.
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John Crompton (born 1937) is the author of:
Up The Road and Back;
A Fox Under My Bed.