Stone was commissioned a
second-lieutenant in the
Berkshire Yeomanry on 19 June 1900. He volunteered for active service in South Africa during the ongoing
Second Boer War, and joined the
Imperial Yeomanry where he was appointed a
lieutenant of the 15th Battalion (Imperial Yeomanry). On 27 September 1901 he was promoted to captain in the battalion, with the temporary rank of
captain in the Army. He stayed in South Africa until the war ended in June 1902, left
Port Elizabeth for
Southampton on the
SS Colombian the following month, and relinquished his commission in the Imperial Yeomanry on 3 September 1902, when he was granted the honorary rank of captain in the Army. Stone was also promoted to a captain in the Berkshire Yeomanry on 11 June 1902, while seconded to the Imperial Yeomanry. He died at
Eastbourne,
Sussex on 11 November 1951. ==References==