Death and devastation follows explosion at Mitcham chemical factory . A boy was killed and many were injured as the result of an explosion at the Bush Chemical Factory at Mitcham , London . The boy was Richard Addaway , aged about 10 , of Belgrave Road , Mitcham , where the houses were demolished by the explosion . 30 March 1933 30s, 30's, 1930s, 1930's, thirties, nineteen thirties