I am told this family, which included Jakob Hafner, has wife Barbara and three children including their six-year-old son John (Johannes?) Albert Hafner, from Ditzingen in Württemberg, Germany, made their way to Hamburg and caught a ship named the "Electric" which arrived in Hobsons Bay, Melbourne, on 25 December 1856. Is there any way to access ship lists for this time to confirm what I have been told? Obviously it is too early for the national archives immigration records.
As always, thanks for your help. Geoff Turner.