The Coventry Four were Hendrik Jacobus Botha, Stephanus Johannes de Jager, William Randolph Metelerkamp and Jacobus la Grange. In the front company (McNay Pty Ltd) they operated on behalf of Kentron, Metelerkamp was the Managing Director, Botha was in charge of administration and security, De Jager was the company accountant, while la Grange was the technical expert.[1]