Gregory Brown was born in London, the son of J Terrell Brown, an art master. After an apprenticeship as a metal worker, Brown turned initially to illustration for magazines and later to poster design, for which he won a diploma at the Milan International Exhibition in 1923, he was an early member of the Design and Industries Association. In addition to his work as a poster designer for companies such as ICI, London Underground and Whitney Blankets, he also designed textiles for which he won a Gold Medal at the 1925 Paris Exhibition of the Decorative Arts. He adopted a simplified lyrical style in his poster design that linked bucolic descriptions, much admired by the British, with bright cheerful colour. He died on 5th March 1951.