POW's during WW1 tried to escape and more specifically a man named David Gray had already managed to do so by getting his hands on a soldiers uniform and walking out the gates.
Eventually, David Gray was recaptured all because he went to the wrong village at the time and got caught. After he was caught he got sent to 2 whole months of solitary which took its toll on him.
After two more brave POWs Caspar Kennard and Cecil Blain had attempted to escape this special escape artist had been sent to the new camp called Holzminden prison.
David Gray, Caspar Kennard, and Cecil Blain had all been escorted to this new camp and eventually David had come up with the idea for a tunnel so he ended up being named the "Father of the Tunnel." Bed legs to support the tunnel up so by the time it was finished it was pretty much all beds.
The tunnel ended up being finished July sometime and the escape happened late at night the 23rd. Twenty-Nine men escaped before the tunnel collapsed. Gray as the master of the plan decided that if they were to get caught he would act insane, Cecil Blain would be an assistant and Caspar Kennard would be an escapee lunatic.
May 8th, 1918 after they were so close and decided to go on a 14-day straight march they reached the border. The Germans found the escape hole 8 whole hours after they escaped, but never went after them as they had no clue to where they had gone.