Erik/Eric Andersen

Hi again, I have a new person I am trying to get more information on. His name was Erik/Eric Andersen (possible incorrect last name) His mother was Maren Olava Larsdatter. She was born 1837/1838/1839 (conflicting information) in Naes Eie. Her father was Lars Jensen(he was born 1818ish) When my gr gr grandfather married her, she already had a son, listed as Erik Andersen. He was supposed to be born in 1858-1859. I cannot find whom his birth father was, no record of birth or Christening that I can locate. Maren died a few months after giving birth to her and Berns daughter, Elise Fredrikke Berntsen on February 27,1865. I have all the records for their marriage, Elise's birth and Maren's death, but after the 1875 census, I cannot find anyhting further on Erik/Eric. So here I am again, looking to verify maybe that he died, left Norway, married... anything else I can find on here.