He was born in Vang Municipality in Oppland county,[1] and was a son of Nils Trondsen Thune.
[2] In 1945 he was also named as a member of the commission Undersøkelseskommisjonen av 1945 that scrutinized the actions of the Norwegian government in 1940.
The other commission members were Gustav Adolf Lammers Heiberg, Arnold Holmboe, Ole Hallesby, Ernst Fredrik Eckhoff, Arne Bergsgård and Sverre Steen, and the secretary was Helge Sivertsen.
Second, the actions of Norwegian authorities between 9 April and 25 September 1940 were investigated, both regarding the three branches of government (Parliament, Government, Supreme Court) that eventually laid down their offices, but also the transition authority (the Administrative Council) as well as other relevant civil and military bodies.
[4] However, he died on Drammen Hospital on 28 May 1950, having suffered a heart problem during the funeral of his brother Helge Nilsen Thune three days before.