Leo wrote the "code poem" used by Violette Szabo as portrayed in the
film
Carve Her Name with Pride (1958). Leo was a real wartime cryptographer and often composed
poems like this for agents to use as an emergency code. The life that I
have Is all that I have And the life that I have Is yours The love that
I have Of the life that I have Is yours and yours and yours A sleep I
shall have A rest I shall have Yet death will be but a pause For the
peace of my years In the long green grass Will be yours and yours and
yours
