Nicholas Winton, a Briton who said nothing for a half-century about his role in organizing the escape of 669 mostly Jewish children from Czechoslovakia on the eve of World War II, a righteous deed like those of Oskar Schindler and Raoul Wallenberg, died on Wednesday in Maidenhead, England. He was 106. The Rotary Club of Maidenhead, of which Mr. Winton was a former president, announced his death on its website. He lived in Maidenhead, west of London. It was only after Mr. Winton’s wife found a scrapbook in the attic of their home at Maidenhead, in 1988 — a dusty record of names, pictures and documents detailing a story of redemption from the Holocaust — that he spoke of his all-but-forgotten work in the deliverance of children who, like the parents who gave them up to save their lives, were destined for Nazi concentration camps and extermination. For all his ensuing honors and accolades in books and films, Mr. Winton was a reluctant hero, often compared to Schindler, the ethnic German who saved 1,200 Jews by employing them in his enamelware and munitions factories in Poland and Czechoslovakia, and to Wallenberg, the Swedish businessman and diplomat who used illegal passports and legation hideaways to save tens of thousands of Jews in Nazi-occupied Hungary. Mr. Winton — Sir Nicholas in England since 2003, when he was knighted by Queen Elizabeth II — was a London stockbroker in December 1938 when, on an impulse, he canceled a Swiss skiing vacation and flew to Prague at the behest of a friend who was aiding refugees in the Sudetenland, the western region of Czechoslovakia that had just been annexed by Germany. “Don’t bother to bring your skis,” the friend, Martin Blake, advised in a phone call. Mr. Winton found vast camps of refugees living in appalling conditions. The pogroms of Kristallnacht, the “Night of Broken Glass,” had recently struck Jewish shops, homes and synagogues in Germany and Austria. War looked inevitable, and escape, especially for children, seemed hopeless, given the restrictions against Jewish immigration in the West. Britain, however, was an exception. In late 1938, it began a program, called Kindertransport, to admit unaccompanied Jewish children up to age 17 if they had a host family, with the offer of a £50 warranty for an eventual return ticket. The Refugee Children’s Movement in Britain sent representatives to Germany and Austria, and 10,000 Jewish children were saved before the war began. But there was no comparable mass-rescue effort in Czechoslovakia. Mr. Winton created one. It involved dangers, bribes, forgery, secret contacts with the Gestapo, nine railroad trains, an avalanche of paperwork and a lot of money. Nazi agents started following him. In his Prague hotel room, he met terrified parents desperate to get their children to safety, although it meant surrendering them to strangers in a foreign land. As their numbers grew, a storefront office was opened. Long lines attracted Gestapo attention. Perilous confrontations were resolved with bribes. Eventually he registered more than 900 children, although he had names and details on 5,000. In early 1939, he left two friends, Trevor Chadwick and Bill Barazetti, in charge in Prague and returned to London to find foster homes, raise money and arrange transportation. He and a few volunteers, including his mother, calling themselves the British Committee for Refugees from Czechoslovakia, Children’s Section, enlisted aid from the Refugee Children’s Movement, had photos of the children printed and appealed for funds and foster homes in newspaper ads and church and synagogue bulletins. Hundreds of families volunteered to take children, and money trickled in from donors — not enough to cover all the costs, but Mr. Winton made up the difference himself. He also appealed to the Home Office for entry visas, but the response was slow and time was short. “This was a few months before the war broke out,” he recalled. “So we forged the Home Office entry permits.” In Prague, Mr. Chadwick quietly cultivated the chief of the Gestapo, Karl Boemelberg — they called him “the criminal rat” after his inspector’s rank of kriminalrat — and arranged for forged transit papers and bribes to be passed to key Nazis and Czech railway officials, who threatened to halt trains or seize the children unless they were paid off. Boemelberg proved instrumental, clearing the trains and transit papers, Mr. Chadwick said. Mr. Winton sent more money, some for bribes and some to cover expenses for children whose parents had been arrested and shot or had fled into hiding, while many of the Czech families sold possessions to pay for their children’s escape. The red tape and paperwork seemed endless. But on March 14, 1939, it all came together. Hours before Hitler dismembered the Czech provinces of Bohemia and Moravia as a German “Protectorate,” the first 20 children left Prague on a train. Survivors told of searing scenes on the station platform in the final moments before departure as children sobbed and pleaded not to be sent away and parents faced giving up their children. Mr. Winton and his colleagues later arranged for eight more trains to get the rest of the children out, crossing the Third Reich through Nuremberg and Cologne to the Hook of Holland, then across the North Sea by boat to Harwich, Essex, and on by British rail to the Liverpool Street Station in London. There, he and the host families met the children. Each refugee had a small bag and wore a name tag.