Could someone advise on the origin of this surname. I believe it is of Croatian, German origin. My g'grandfather Friedrich Copenech (son)is said to have been born in Fiume around 1860 and came to Australia around the mid 1880's. All I have is reference to his time (1914....) in an enemy alien camp in Liverpool, NSW. How can I access more information about this time served. I believe he worked on the Sydney wharves before his internment. Also, how to I find reference to those who came to Australia as seamen, were not naturalised but remained a citizen of Australia etc. Any information would be appreciated with thanks.