Clark was an artist and Works Relations Officer at a Royal Ordnance Factory working for the Ministry of Supply who designed ‘But is the Machine Turned Off?’. Not a professional advertising man, he was a bank clerk ‘who found himself drafted into the industry like so many others with no previous experience of factory work’.
Information collated from: Shaw, C.K., ‘Works Relations’, Advertiser’s Weekly, Vol. 121, No. 1,583, September 23 1943, p.378, and Australian War Memorial.
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