|Olympic medal record|
|1912 Stockholm||Men's coxed fours|
Vernon was born in Neuenahr, Rheinland-Pfalz, Germany. He joined Thames Rowing Club in around 1904, first appearing at Henley Royal Regatta in 1906, with Julius Beresford as runners-up in Goblets and in a Thames Cup eight (which also included Bruce Logan). Beresford and Vernon were runners-up in Silver Goblets again in 1907 and 1908.
In the Autumn of 1907, having become frustrated by their inability to impress the Thames coaches, Vernon and Beresford formed a new four with Logan and Charlie Rought. This four (with Vernon in the 2 seat) would stay together, on and off, for the next five years, winning the Stewards' Challenge Cup at Henley in 1909 and 1911.
Vernon later went on to become a regular coach at Thames and at numerous University clubs. In 1954 he had all his trophies and medals melted down and made into a trophy for the Head of the River Race.
He was Captain of Thames from 1930–32 and was elected a Vice President of the Club in 1943.
Outside rowing he was an architect, spending at least some of his career at the London County Council. He also designed an extension to the Thames clubhouse.
He was a talented draughtsman and sketcher; works by Vernon were frequently used as prizes in local regattas.
Vernon was a vegetarian and this led to his lifelong nickname "The Bean".
- 1912 – Silver, Coxed Four
Henley Royal Regatta
- 1909 – Stewards' Challenge Cup
- 1911 – Stewards' Challenge Cup
- 1919 Victory Regatta – Fawley Cup