The information on registered seafarers is not in all cases complete. As new sources are studied, information on engagements and medals etc. will be added to some of the already registered seafarers.
NorwayEx gratia-arkivet:
Registernummer under krigen: London 28302, NY 2914.
Karlsen var internert frem til februar 1942, rømte fra Marokko.
Gikk inn i Den norske marine 18. februar 1942.