Op 11 november 1944 kregen piloten van de Royal Canadian Air Force, die hun basis hadden op vliegveld Welschap bij Eindhoven, de opdracht om in twee groepen de sluis bij Terherne te bombarderen. Het sluiscomplex lag in een belangrijke scheepvaartroute waarlangs de Duitsers goederen en militair materieel vervoerden.
Even na negen uur in de ochtend vertrokken de twee groepen Hawker Typhoon jachtbommenwerpers kort na elkaar vanuit Eindhoven voor hun missie. Aangekomen bij Terherne bombardeerde de eerste groep succesvol één van de twee sluisdelen. De tweede groep verging het minder. De bommen uitgeworpen door de piloot van het eerste vliegtuig explodeerden op het moment dat het tweede vliegtuig van John Gordon Fraser laag boven de sluis was aangekomen om zijn bommen erin te gooien.
Zijn vliegtuig werd in het koelsysteem geraakt door scherven van de bommen die onder hem explodeerden. Hierdoor liep de motortemperatuur snel op. De piloot van het derde vliegtuig meldde over de boordradio dat er rook uit de motor kwam, waardoor het voor John Gordon Fraser al snel duidelijk werd dat hij zijn basis niet zou bereiken en een geschikt terrein zou moeten vinden voor een noodlanding.
Kort daarna maakte hij hier op de Scharweg een geslaagde noodlanding. Piloot Fraser heeft zich na de noodlanding aanvankelijk in het Easterskar schuilgehouden. Siebe de Jong en Jan Sloothaak voorzien hem van burgerkleding en eten. Met hulp van het verzet komt hij vervolgens na wat omzwervingen via o.a. Joure, Akmarijp en Oudehaske in Tjalleberd terecht.
Daar assisteerde hij Lykele Faber, agent van het Bureau Bijzondere Opdrachten (BBO), die in november 1944 samen met Peter Tazelaar bij Haskerhorne was gedropt. Hun missie, codenaam Necking, was om het radiocontact met Londen te onderhouden, het Friese verzet te organiseren en te helpen met het opzetten van locaties waar voorzieningen, wapens en munitie per parachute konden worden afgeworpen.
During the war, Jakob (Jaap) Klok ended up in the resistance in Dantumadeel, where he played an important role. At the time, he lived with his wife and four children in Akkerwoude, where he was headmaster of the school at Hearewei 13. He stayed there until 1947 and will always be remembered as "Headmaster Klok."
Jaap Klok was active socially and in politics as a member of the Dutch Social Democratic Labour Party (SDAP). When party meetings were banned by the German occupiers, Jaap imperceptibly became ever more involved in resistance activities. He passed on party information, distributed illegal newspapers, and looked for addresses for people in hiding. Jaap Klok joined the LO, the National Organisation for Aid to people in Hiding, and became the Akkerwoude village commander.
Although people did not know exactly what he did, it was known that he was in the resistance. Despite the fact that his name circulated among NSB members, he decided not to go into hiding, but instead tried to be even more careful and to sleep at home more often than not.
As the war drew to a close, Jaap became very busy. The Dutch government in exile was calling on railway workers to go on strike. The resistance arranged for the hiding. On 15 December 1944, a group of about sixty refugees from Arnhem arrived at his school. Jaap was indirectly involved in the evacuation committee, which was looking for addresses for the unfortunate Arnhem residents.
Shortly thereafter, he was warned at the schoolhouse that during a raid in Murmerwoude, explicit questions were asked about schoolmaster Klok. Jaap did not hesitate a second and quickly left the house. And not a moment too soon, as ten minutes after his departure the Germans were already on his doorstep. From that moment on, Jaap knew that he had to be very careful. He hardly ever slept at home anymore.
From January 1945 onwards, the situation became explosive. After the discovery of weapons on a farm in Aalsum, the Germans became fanatical. They relentlessly hunted down resistance fighters and used any means to make those who were caught talk. The name "Jaap Klok" was also mentioned during these interrogations. Sufficient reason to leave then and there, with his whole family. The children stayed with relatives. He and his wife went into hiding elsewhere.
During the last weeks of the war, Jaap was very busy. Much had to be organised and discussed within the resistance to expel the Germans and prepare for the arrival of the Canadians. Just before Dantumadeel was liberated, the inhabitants were already beside themselves with joy. They raised the flag and took to the streets en masse to celebrate. Because of his resistance work, Jaap knew exactly what the situation was with regard to the liberation. He climbed onto the balcony of the town hall and addressed the people. After all, the danger had not yet passed. Even when that was the case shortly thereafter, he ensured that peace was maintained among the population of Dantumadeel and thus prevented the molestation of a number of NSB members.
After the war, he held many administrative positions in the province of Friesland. In 1984, Jaap Klok died at the age of 91. Fifteen years later, a statue of him was erected in Akkerwoude, which was then called Damwoude, as a tribute.
From the book "De oorlog een gezicht geven" (deel 6) – Dantumadeel in de periode '40 - '45 by Yvonne te Nijenhuis and Reinder H. Postma