One of the series available at the National Archives is WO97 - Soldiers Service Documents 1790-1913.

I have begun adding a new literary reference to The Register of 'WO97', this indicates that a soldier's papers are in WO97 (1900-1913).

These are the enlistment papers for soldiers of the Regular Army. Generally papers were only retained for pension purposes, papers for soldiers who died on service were destroyed (a very few are in WO97). Not every surviving soldier's papers will be found, but WO97 is the only place to find out any biographical information about a soldier of the Anglo-Boer War; unless they served in World War I or their pension claim was 'live' after 1914. Sometimes one can find discharge papers for Colonial soldiers and Imperial Yeomanry in WO97.

You can read more about WO97 and the National Archives catalogue here.

WO97 is sub-divided by year of discharge. The majority of soldiers who served in the Anglo-Boer War would have been discharged in the last group - 1900-1913. There are approximately 2090 boxes in this series, this is a big task!