 Roberts was subsequently commissioned by the British Ministry of Information, for whom he painted "A Shell Dump, France" (1918–19), now in the Imperial War Museum collection along with twelve watercolour drawings of his experiences at the front They rival the bitterness and social realism of the German artists Otto Dix and George Grosz.In 1978 Roberts published a memoir of his experiences at the front – "4.5 Howitzer Gunner RFA