From: Blanco
This Prisoner of War record for Sarel Petrus Van Jaarsveld 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=13083&r=Sarel Petrus&s=Van Jaarsveld&ref=
This set of Prisoner of War documents can be accessed online via the FamilySearch.org project by Clicking Here.