Presentation about a project to describe and interlink all 1.300 Dutch resistance newspapers from WW2 on Wikipedia using linked data and crowdsourcing. Summary: During the second World War some 1.300 illegal newspapers were issued by the Dutch resistance. Right after the war as many of these newspapers as possible were physically preserved by Dutch memory institutions. They were described in formal library catalogues, that were digitized and brought online in the ‘90s. In 2010 the national collection of underground newspapers – some 200.000 pages – was full-text digitized in Delpher, the national aggregator for historical full-texts. Having created online metadata and full-texts for these publications, the third pillar context was still missing, making it hard for people to understand the historic background of the newspapers. We are currently running a project to tackle this contextual problem. We started by extracting contextual entries from a hard-copy standard work on Dutch illegal press and combined ...