From: Dykkop
This Prisoner of War record for Joseph Andries Jacobus Van Dyk was transcribed record from various documents held at the National Archives, South Africa, including arrest and shipping information from newspaper sources like De Zuid-Afrikaan.
https://www.gendatabase.com/boer-war-prisoner-record.php?q=3669&r=Joseph Andries Jacobus&s=Van Dyk&ref=
This set of Prisoner of War documents can be accessed online via the FamilySearch.org project by Clicking Here.