Career
Trying to help Danielsen, Sidło lent him his modern steel javelin, and Michel Macquet gave him a cup of strong coffee. He could never reproduce that throw. Danielsen was an avid cross-country skier before changing to javelin throw.
He took fencing lessons from a top Norwegian fencer to improve his flexibility, reflexes and the use of right arm.
He retired after the 1960 Olympics and focused on his family and work at the Hamar Fire Brigade.