Blenheim, New Zealand
Collett was born in Blenheim, New Zealand on 28 August 1886. His father, Horace Edwin Collett, lived at Lambeth, London, England. His mother, Alice Marguerite Radford, the senior Collett's wife, resided in Tauranga. After completing his education at Queen's College in Tauranga, Clive Collett chose a career in engineering.