Background
Clausen"s father was Arreboe Clausen, a merchant and later chauffeur (5 November 1892 – 8 December 1956) and his mother was Sesselja Þorsteinsdóttir Clausen (born 28 December 1905).
Clausen"s father was Arreboe Clausen, a merchant and later chauffeur (5 November 1892 – 8 December 1956) and his mother was Sesselja Þorsteinsdóttir Clausen (born 28 December 1905).
Clausen was an athlete from 1946-1951. At the age of 19, he made it to the sixth heat of the men"s 100 metres in the 1948 London Summer Games. He held a range of Icelandic records in athletics.
Clausen graduated from Menntaskólinn í Reykjavík in 1948 and from the University of Iceland as a Candidate in Dentistry in 1952.
He gained his dentistry license in 1952 and undertook his postgraduate studies at the University of Minnesota 1952-1953. Returning to Iceland, be began his own practice, which he ran until July 1994, when he retired.
Clausen was the president of the Félag tannlæknanema (Student Dentists" Association) in 1951, and involved in the Tannlæknafélag Íslands (Dentists" Association of Iceland) from 1972, acting in 1973-1974 as deputy chair and 1974-1976 as chairman He was on the board of the Tannsmíðaskóli 1979-1983.
Clausen was keen on painting and held two exhibitions at Kjarvalsstaðir, in 1981 and 1987.