Rank: A/Segt.
This Boer-War Soldier record for J WOLSTENHOLME 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=268474&r=J&s=WOLSTENHOLME&ref=