From: Kleinfontein
This Prisoner of War record for Louis Tjaart P Van Der Berg 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=20523&r=Louis Tjaart P&s=Van Der Berg&ref=
This set of Prisoner of War documents can be accessed online via the FamilySearch.org project by Clicking Here.