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This Boer-War Soldier record for Johann Fredrick Williom EMHK was transcribed record from various documents held at the National Archives, South Africa. Data contained in this set is known as "The Soldiers of the Queen".
https://www.gendatabase.com/boer-war-soldiers-record.php?q=81522&r=Johann Fredrick Williom&s=EMHK&ref=