From: Pretoria
This Prisoner of War record for Solomon Barend Philippus Marais 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=17226&r=Solomon Barend Philippus&s=Marais&ref=
This set of Prisoner of War documents can be accessed online via the FamilySearch.org project by Clicking Here.