Johann Christian Krahe & Dorothea Goethe abt 1835-1840. Last known location, Tangermunde before leaving for Australia, Johann in 1854, Dorothea & 3 children in 1858. Any help will be greatly appreciated
I'm not entirely sure what you are asking? More information before these two emigrated or more information after they emigrated to South Australia.
This link may or may not be of use to you - I'm not sure if you have seen it
I can help you with further details in Australia if that is what you are seeking.