The research centre houses two large collections which preserve the heritage and history of the villages now belonging to the community of Zonnebeke. The documentation centre of the Memorial Museum Passchendaele 1917 covers a range of First World War reference books and archives, particularly about the Third Battle of Ypres (1917). You can consult the inventoryhere.
The second collection contains the library and archives of the Zonnebeke Heemvrienden dedicated on local customs and folklore. It holds both general and periodical works on local history. The online catalogue can be consulted via the ‘documentatiecentrum’ tab on their website.