As the leading member of the movement after Mosley, it was Francis Hawkins who developed the notion of BUF members wearing a black shirt under an ordinary suit, an important step for the movement to retain its identity following the banning of uniforms in the Public Order Act 1936 [REF].
In 1936 F.M. Box, who had been deputy leader and Francis Hawkins' main rival, left the movement due to the growing influence of the militarists on Mosley.