Despite working on (and editing at one stage) the British Journal of Photography for 40 odd years, Geoffrey Crawley was perhaps most famous for blowing the lid off the Cottingley Fairies photography hoax in the '80s, where two young cousins fooled the world in 1917 with their photos of some fairies at the bottom of their garden.

Crawley also invented the eco-friendly developer for monochromatic film FX-55. [BJP via @JennyHodge]

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