Calum Maclean
Maclean was born in Òsgaig, Isle of Raasay, Scotland, into a family of five boys and two girls. His father was Malcolm MacLean (1880–1951), who was a tailor. His mother, Kirsty (1886–1974), was the daughter of Sorley Mor Nicolson of Braes, Skye, and his wife, Ishabel.
Denis McLean
The eldest son of Gordon McLean, a newspaper editor, and Ruahine Smith, McLean was born in Napier; his family later lived in Auckland and Wellington. He attended Nelson College from 1944 to 1948, took an M.Sc (1st class) in geology at Victoria University of Wellington and won a Senior Scholarship in 1953 and a Rhodes Scholarship to Oxford University in 1954. At University College in Oxford he studied politics, philosophy and economics. He played rugby at both Victoria and Oxford Universities, and was a member of the Victoria team that won the Jubilee Cup three times in the early 1950s.