|Born||)14 June 1870 (or 1881|
|Died||13 October 1915 (aged 45)|
Jenkinson was a pupil at the Professor McPherson’s School of Arms where he learned fencing. His first fencing achievement was in 1899 winning the Colmore-Dunne Challenge Cup. in 1900 he won the gold medal in the foil event at the German Gymnastic Society's. Jenkinson became national foil champion in 1902, 1903 and 1904. He was foil champion of the Auxiliary Forces in 1905 and 1906. He took part in the Sabre Championship, and finished each time second behind Charles Wilson. He competed as at the 1908 Summer Olympics in the open foil event. This event was held a demonstration event.
Jenkinson was a member of the Inns of Court Volunteers from 1888. From 1908 he joined the Territorial Force at Tamworth. During World War I Jenkinson became a captain in the 6th Battalion of the North Staffordshire Regiment. He died in action in Pas-de-Calais, France on 13 October 1915 in a confrontation with the enemy.