Hi Lyn, My name is Jane Martiensen and I am originally from Adelaide, Australia. I have 6 in my family, with my father, Peter Martiensen. His mother is Sheila Martiensen. I have always been interested in finding out more about the Martiensen name. My Grandmother tells me that two brothers came out from around the German border region (she believes it may have been a Scandanvian country) and one settled in Port Adelaide. Other than this, Im not really able to provide any more information without getting in contact with them again. I am really enthused about learning more about this. I am currently living in Ireland. What does Martiensen mean to you?