Jenner was born in 1869 in London, the fifth son of
Sir William Jenner, 1st Baronet, physician to
Queen Victoria. He was educated at
Marlborough College and
Royal Military College, Sandhurst. He joined the
King's Royal Rifle Corps in 1888, and was promoted to captain in 1896. Jenner served with the
60th Rifles and the
9th Lancers in the British Army. and the
Roehampton Trophy in 1903, 1907, 1908, 1909 and 1910. After retiring from the army on 4 May 1904, Jenner became the polo manager at the
Ranelagh Club. In 1912 Jenner's handicap was raised to 8 goals, making him one of England's top players at the time. He also won the Army fencing championship at the Royal Military Tournament in 1895. He rejoined the army in August 1914 after the start of the First World War. He served in Egypt and Gallipoli, and was awarded the
Distinguished Service Order. He served in France from 1916 to 1918, and was made a Companion of the
Order of St Michael and St George in the
1919 New Year Honours. He also received the
Order of the Crown of Romania. In 1899, he married Nora Helen Gertrude Stewart, daughter of Field Marshal Marshal
Sir Donald Stewart, 1st Baronet. Following the First World War, he lived at
Avebury Manor in
Avebury, Wiltshire, where he served as a
JP. He died in Bath in 1953. ==References==