The boys on the covers of U2's 'Boy' and 'War' albums are the same boy, the youngest brother of Bono's childhood bestie, Derek Rowen. Derek gave Paul Hewson the nickname 'Bono Vox of O'Connell Street', which got shortened as nicknames do. The cover boy had been given the nickname of Radar; his immediate older brother had been christened Hawkeye.

Bonavox was a local hearing aid shop. Derek just liked the sound the word made.