Mary Stopes-Roe, daughter of bouncing bomb inventor, Barnes Wallis, tells the story of Wallis's eagerness to become an engineer at a young age.
It was this passion for engineering that would bring him to become an icon of both the British engineering industry and British war effort.
And it is perhaps one of the reasons why he was so popular with the mechanics and ground crew who worked on the Lancasters that flew on the Dambusters raid of May 16/17, 1943.
