Gustav Johan Fredrik Dietrichson was a Norwegian theologian and bishop.
Dietrichson, Gustav Johan Fredrik was born on April 8, 1855 in Luther Valley, Wisconsin, United States. Son of Provost Gustav Fredrik and Pauline (Prens) Dietrichson.
University of Oslo.
He served as bishop of both the Diocese of Hålogaland and the Diocese of Hamar. He came for a clerical family. Preus served as the first President of the Norwegian Synod prior to returning to Norway in 1870 where he served as vicar of Tvedestrand and Holt in Aust-Agder until his death.
Dietrichson himself moved to Norway where he received his Cand.theol. degree from the University of Oslo in 1878. He was the parish priest in Stor-Elvdal from 1887 until 1897 and in Bodø from 1897 until 1910. In 1910, he was named Bishop of Tromsø stift.
The name was changed to the "Diocese of Hålogaland" in 1918. Later in 1918, he became the new bishop for the Diocese of Hamar, the position he held until his death in 1922 in Hamar.