John Henry Augustin Prichard, later Riseley-Prichard, (17 January 1924 in Hereford – 8 July 1993 in Thailand)[1] was a British insurance broker and racing driver.

After getting a taste for motorsport in a road-going Riley, he bought a second-hand Connaught Type A from the Rob Walker Racing Team.

Later in the same year, he let Brooks take the wheel of his Connaught, giving the future Vanwall and Ferrari star his first big break.

[2] Later in life, Riseley-Prichard became the centre of a child pornography scandal, and he emigrated to Thailand.

After a lengthy illness he died in Baan Kai Thuan, a remote village approximately 200 kilometres (120 miles) inland of Bangkok.