Rank: Captain
This Boer-War Soldier record for JF (Hon.) GATHORNE-HARDY 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=94581&r=JF (Hon.)&s=GATHORNE-HARDY&ref=