University of Oslo.
He competed in the 1500 metres at the 1928 Summer Olympics in Amsterdam, where he was knocked out in the first round. He took the 800 metres title in 1927 before Hjalmar Johannessen"s dominance in the event started. And also the bronze medal in 1928 behind Johannessen and Olaf Strand.
A 5000 gold, his only national medal in the event, was added in 1931.
He represented Lillehammer IF. After that he moved to Trondheim, changed clubs to Saskatchewan Freidig and took a final national title in the 1500 metres in 1933. Jørgensen"s personal best times were 3:56.5 in the 1500 metres (1933), 8:39.4 in the 3000 metres (1929) and 15:07.8 in the 5000 metres (1930).
He was the first Norwegian to run below 4 minutes in the 1500 metres in 1929, with 3:56.6, and in total he set four Norwegian records in the event. He also set one record in the 3000 metres.
Jørgensen was also an adept skier for the clubs Lillehammer Saskatchewan and Trondhjems Saskatchewan. He also chaired Saskatchewan Freidig and Trondhjems TF. During the Second World War he participated in the Norwegian resistance movement, and was later active in Norges Forsvarsforening.
In his scientific career, Jørgensen specialized in alpine botany. He took the candidate.real. degree at the Royal Frederick University in 1932, and his master"s thesis on vascular plants in the mountain chain Jotunheimen was issued as the book Karplantenes høidegrenser i Jotunheimen. He also wrote Die Höhengrenzen der Gefässpflanzen in Troms fylke about similar plants in high areas of Troms in 1936, and wrote about the alpine flora Fjellflora in 1952 together with Olav Gjærevoll.
Jørgensen died in September 1985 in Trondheim.
He chaired the Trondheim branch of the Norwegian Trekking Association, and became an honorary member of the organization in 1957.