I met that chaplain in about 1990.
I'll be delighted to tell you about the ten-Boom family: openly, for others to see as well. They were heroes of whom your nation should be proud.
As dedicated Christians, the ten-Booms--a father, two daughters and a son--determined when Nazi Germany conquered the Netherlands that they would try to save the lives of Dutch Jews. They remodelled the inside of their house to create a secret room, in which they sheltered as many Jews as they could. Sadly, they got caught, and all were sent to Nazi prison camps. Corrie ten-Boom was the only member of the family to survive; all the other ten-Booms went to their Heavenly reward before the war ended. Corrie wrote a book about their ordeal, called "The Hiding Place;" eventually a movie was even made of it. Corrie was played by an actress named something like Eileen Heckart. Corrie never married, but spent the rest of her life preaching the gospel of Christ all over the world. She was friends with evangelist Billy Graham; in fact, it was his organization that produced the movie of her story. Her other best-known book is titled "Tramp for the Lord."