From: Rooipan
This Prisoner of War record for Henry Pieter Johnson 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=10900&r=Henry Pieter&s=Johnson&ref=
This set of Prisoner of War documents can be accessed online via the FamilySearch.org project by Clicking Here.