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
On 8 April 1945, the words "The bottle is empty" sounded on Radio Orange. This code message was the go-ahead for the resistance to start putting bridges, roads and railway lines out of order thirty-six hours later. The Frisian resistance answered this call en masse.
As soon as the Allied vanguard drew near, the armed resistance was also deployed to support their advance. And that sometimes meant that there were also bridges that had to be occupied rather than deactivated. One such action took place in the municipality of Weststellingwerf.
On 12 April 1945, the Canadian vanguard approached the village of De Blesse. The local section of the Dutch Domestic Armed Forces (NBS) was instructed by the resistance leadership to scout the railway bridge and road bridge (the Blesse bridge) over the Linde and, if possible, to occupy them.
These bridges were important for maintaining the speed of the Canadian advance. Partly for this reason, they were also often guarded by German soldiers. In most cases, the bridges were also fitted with explosives. This allowed the bridge to be blown up if the Germans eventually had to retreat.
The reconnaissance revealed that the Blesse bridge was guarded by a total of about 10 soldiers. The NBS then decided to attack the bridge from two sides in the evening. Thanks to several aerial arms drops, the resistance fighters were well armed. In the dark, the men set off and split up into three groups. They eventually took up posts north and south of the bridge. The plan was to storm the bridge at two in the morning from the south.
To their surprise, their fire was not returned as they approached the bridge. The guards appeared to have disappeared. With that, the bridge had unexpectedly fallen into the hands of the NBS without bloodshed. Moreover, no explosives were found to be affixed to bridge. After the bridge was secured, it was guarded until the Canadians arrived.
News of the occupation of the bridge was reported to the section commander the same night. And through other means of communication, the news also reached the Canadians. Holding the bridge facilitated and accelerated the Canadians' advance later in the day.