From: Senekal
This Prisoner of War record for John Gamble Dunn 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=1215&r=John Gamble&s=Dunn&ref=
This set of Prisoner of War documents can be accessed online via the FamilySearch.org project by Clicking Here.