Jack Sangster

John Young Sangster was a British industrialist and philanthropist. More commonly known as Jack Sangster, he became an important figure in the history of the British motorcycle industry, having been involved in the major marques of Ariel, BSA and Triumph.

Sangster was born in Kings Norton, Birmingham, England, the second son of three born to Charles Thomas Brock Sangster, an engineer and the owner of Cycle Components Ltd, better known since 1902 as the motorcycle brand Ariel.

Source: Wikipedia