Claim: The man, who was born in Trondheim, Nord-Trøndelag,worked as an installation director and as a managing director.
Evidence: He was born in Trondheim, Nord-Trøndelag in 1868, and studied at Trondhjems tekniske Skole ("Trondheim School of Technology") between 1887 and 1890. After he finished studying, he was hired by the Norwegian State Railways, where he worked as an installation director of the Solør, Sætesdal and Gjøvik Lines. In 1897, Sejersted became managing director of Holmenkolbanen, at an age of 29 years.