Andersons in 18th century Japan

Greetings, I am trying to trace Norweigian ancesters and was wondering if anyone can help. I have very limited information based on a marriage certificate. There is a certain Elaine Maghreta Anderson (apparantly born in Japan c.1892) and whose father is a Kristen Anderson and was noted in his profession to be a Master Mariner. I have contacted the Norweigian embassy in Tokyo but the embassy holds no archive records since Norway has had diplomatic relations with Japan from only 1905 onwards. Does anyone have any further information or suggestions on how to research this further?