Called "The British Schindler," by the British news media, Nicholas's incredible story begins in 1938, as the Munich Agreement is signed allowing Nazi Germany to occupy part of Czechoslovakia.
As Hitler's Army was about to arrive, the Czech capital Prague was flooded with people, especially Jews, desperate to get out.
That winter, 29 year old Nicholas, a London stockbroker, went to Prague to help as many of those people as he could to escape.
When he arrived, he saw the refugee camps where 150,000 displaced men, women and children were crowded together in tents.
Temperatures were freezing, and there was inadequate food and shelter, as well as poor sanitation, and little medical care.
Nicholas immediately set up an office, and despite having no refugee experience, began working to get as many endangered children as possible out of Prague.
The word spread, and desperate parents arrived to beg for his help. To see as many parents as he could, he stayed up until 2 am, and early the next morning would start all over again, compiling a list of names and facts.
When Nicholas got back to London, he opened an office run by his mother and volunteers, and he pursued British officials to authorize the children's arrival.
Responding to his pressure, British officials approved the children if there were homes awaiting them. Nicholas ran ads to secure those homes.
And when the children's paperwork backlogged among the British officials, Nicholas quietly paid financial incentives to get it done.
As a result on March 14th, 1939, the first 20 children boarded a train leaving Prague, ultimately on their way to London.
But the next day German troops occupied all of Czechoslovakia.
However, the Nazis did not stop Nicholas' refugee children from leaving, for they hadn’t yet begun "the final solution" of mass murder.
In all, seven trains carrying 669 children left Prague. But on September 1st, 1939 an eighth train with 250 children was ready to leave the station when World War ll was declared.
The train never left and most or all of those children eventually wound up in Auschwitz or some other Nazi death camp.
So what became of the 669 children who reached London? Many later prospered and they had children and their children had children, as the original 669 children are now about 15,000 people who owe their lives to Nicholas.
What became of Nicholas? He is now 105 years old and ever the humanitarian, today he is building homes for the aged.