I have been trying to find anything on a Christof Jochim Fritz BITTER who came out with his mother Dorothea Sophia Bitter on the President Smidt in 1848, Christof was 2 years old.
I was thinking maybe Christof's surname became AUHL instead of BITTER once sophia married Heinrich Christian AUHL (AUL) in September 1848. ( came out on the same vessel and was from the same village, Detershagen)
If possible could you check if there is any reference to a Christof Jochim Fritz AUHL either getting married or dying.
I know that Christian, Sophia and most of the children headed for Wodonga around 1869 so this would have made Christof around 22 and he probably didn't go.
It's a long shot but a possibility.