Born in
Frederikshald, he was the son of the trader Erik Ancher (1709–1785) and cousin of
Bernt Anker. In 1759 Carsten left on a journey abroad that was to last for several years, together with his brother
Peter and four cousins from
Christiania. From 1771 to 1772 he was an envoy from several of the major Norwegian trading companies in
Stockholm to negotiate better conditions for the timber trade on the river
Klarälven, without much success. While in
Sweden, however, there arose suspicion that he was also working with a secret, political agenda, and when
Gustav III conducted his coup d'état, Anker was asked by the government in
Copenhagen to return. ==Civil service career==