When Lars Bertinius Asbjornsen was born on 18 December 1865, in Arendal, Aust-Agder, Norway, his father, Lars Bertinius Asbjornsen, was 42 and his mother, Anne Bollethe Olsen, was 40. He married Syneve Amalie Sneide on 20 December 1899, in Hennepin, Minnesota, United States. They were the parents of at least 4 sons and 2 daughters. He died on 15 January 1955, in Duluth, St. Louis, Minnesota, United States, at the age of 89, and was buried in Duluth, St. Louis, Minnesota, United States.