Also, from the 1920, Duluth, MN census, I found this (note last name spelling):
Edward Christensen, wife Gunhilde, sons Clarence, Gerald S. and Edward. Living on Eighth St in Duluth. edward Sr and wife were born in Norway; all the children were born in MN. This Gerlad was age 5 at the time of the census, which was taken Jan 10th, 1920.