ALF T. JOHANSEN

I am seeking information on Alf Teodor Johansen. His surname was formerly Teodorsen from Trasidingen. He served in the Merchant Marine and during the war, his boat was rescued and all the crew were brought to New York where he remained until the war ended. He returned to Norway to re-join his wife Karen (or Karin) Helene Syversen Julsen and daughter Maybrett. They emmigrated to the US via Canada (Quebec I believe) in the mid to late 1940's in a group of 12 on the Idefjord. Alf T. Johansen's father was Johan Teodorsen (was Domberg), and mother Marie Severina Sorensen. It it most difficult to find anything on Alf and his parents. Any help would be most appreciated!! Thank you.