Rank: Colonel
This Boer-War Soldier record for HR ( Viscount) DOWNE 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=62174&r=HR ( Viscount)&s=DOWNE&ref=