Zenon B. Lukosius

More importantly the Americans captured a code book that enabled Allied forces to more frequently pinpoint other German vessels.

His father was killed in an accident when he was 14 years old, and he dropped out of school to help support his mother.

[2][3] On June 4, 1944, Lukosius and eight other men were assigned to Task Group 22.3, which was to board and secure the U-505 submarine.

There were however, no such traps and the Americans managed to close the valve that was allowing water to enter.

[3] Lukosius also helped Chicago's Museum of Science and Industry raise $35 million to build an exhibition space for the U-505 submarine, which opened in 2005.