A vakblad is a trade journal. Trade journals became popular in the early 1900s, though some go back further.
Trade journals can have interesting information about your ancestors, such as:
- information about completed education or achieved diplomas
- membership of unions, committees, organizations
- publications by our ancestors
- information about their employers
- images of the trade they were in.
You can find trade journals by searching the Tijdschriften [magazines] section at Delpher.
Example: Butcher’s exam
On 5 March 1943, the journal for butchers published the list of people who successfully completed the exam to become a butcher. The exam took place in Breda on 22 February 1943. Of the 21 candidates, 15 passed. Among when was my grandfather, Jan Marijnissen from Breda.

J. Marijnissen passed butcher’s exam.
De Vee- en Vleeschhandel, 5 March 1943, via Delpher.
