According to my records Michael Ziebarth and his wife and son Johann arrived in Australia on the "Peter Godeffroy' on 18 November 1855. I can't find where I got the following information from but I found an entry on a website for his marriage year 1851 which took place in Czerniejewo (Schwarzenau),Kreis Witkowo, Posen. I don't know if any records are still kept at Hamburg. There are some records kept at the Immigration Museum which I think is in Bremerhaven. I would like to know where you fit into the descendants of Michael Ziebarth. I have been collecting as much information about descendants as I can over many years since the 1970's. Much of it is incomplete and some is probably wrong. I will try to contact you personally.