He was born in Kristiania as a son of Peter Therentie Duborgh and Caroline Joseline Mervis.
Peter Carl died in 1894, and William Duborgh was the sole owner until 1908 when Trygve Wettre was brought on board.
William Duborgh died in a car accident in France in 1929, and Trygve Wettre became sole owner.
He chaired Kristiania Commerce School, was a board member of Kristiania Gasværk and Nationaltheatret and deputy board member of the Bank of Norway.
[1] He was a supervisory council member of Livsforsikringsselskapet Brage (chair from 1918),[5][6] and Handels- og Exportbanken.