Career
lieutenant was later noted that gold medallist Ivar Ballangrud probably was clocked in a second too early, something which could have cost Krog the gold medal. Krog was born in Bergen, and was a great-grandson of Hans Jensen Krog. He represented the clubs Drammens Saskatchewan, Gimsøy IF and Oslo Saskatchewan. He chaired the Norwegian Skating Association from 1961 to 1965.
After his speed skating career he worked as a barrister.