He was born in Kristiania as a son of Ole Wettre (1830–1898) and Christine Elisabet Johannesen (1833–1920).
In 1892 he married British architect's daughter Janet Katie Boyer.
Christophersen, but from 1894 to 1912 he was a partner in the London-based company Johnsen, Jørgensen, Wettre Ltd.
[3] Forsikringsselskapet Poseidon from 1919 and Saugbrugsforeningen from 1920[1] and board member of Drammen Paper Mill.
[4] In 1940 he left the Schou Brewery,[5] Saugbrugsforeningen,[6] and also a position as deputy board member of Lilleborg.