Campion was one of the earliest members of the New Society of Painters in Water Colours, having been elected in 1837, and was a frequent contributor to the exhibitions of that society. Olden Times and Gathering Orach, both exhibited at the Institute of Painters in Water Colours (as the Society was renamed in 1863) in 1869, are fair specimens of his art. He was for some time drawing master at the Military Academy, Woolwich. Although many sites say that George Bryant Campion retired and died in Munich, he died on 1 April 1870 at Woolwich, UK. Another common mistake is that he was the author of "The Adventures of a Chamois Hunter".
This article incorporates text from a publication now in the public domain: Bryan, Michael (1886). "Campion, George B.". In Graves, Robert Edmund (ed.). Bryan's Dictionary of Painters and Engravers (A–K). Vol. I (3rd ed.). London: George Bell & Sons.