Vernon was the son of George Vernon of 32 Montagu Square. He was educated at Rugby School, and first appeared at Lord's as a member of the Rugby eleven in 1873, and was captain in 1874. He later went on to play 103 first-class games for Middlesex. Besides the 1882–83 tour, he also toured Australia in 1887–88.
Vernon toured India and Ceylon (now Sri Lanka) in 1889-90 as the leader of a team of amateurs, of which the other notable player was Lord Hawke. The other players could not really be said to be first-class, but the team was of a quality much higher than any seen in India at that time. This was the first ever tour by a foreign team to India. They won seven games and drew another before they were due to play the Parsi Gymkhana of Bombay (now Mumbai) on 30 January 1890, just after that great cricket stalwart, Lord Harris, had been named as the next Governor of the Bombay Presidency. The match was billed as being for the "Cricket Championship of India". At the time it was the greatest sporting event to have happened in Bombay, and to the astonishment of the British rulers, the Parsi side won.
Vernon toured India again in 1892-93 as part of a team led by Lord Hawke that also lost to the Parsis. His last first-class game, which was for the Marylebone Cricket Club came in 1898.
By profession Vernon was a barrister, who was called to the Bar at the Middle Temple. He was engaged in the colonial service, and worked for the West Africa Police in the Gold Coast Colony at the time of his death.[2]
Vernon died aged 46 of malaria fever in the Gold Coast (now Ghana).[3]