Berlin Bob has pointed me in this direction, to try and seek some help with my German ancestors!
I have a lady in my tree called Augusta Allhusen.
On the 30th of August 1875 the 18 year old Augusta married my most whacky named ancester New Year Rickaby (guess when New Year was born

)
at the time of the marriage the father listed was Jacob Allhusen a carpenter.
I have them on the 1881 census where Augusta says she was born in Germany.
That is it, I can't find Jacob anywhere, I can't find his death on the free BDM, although I now appreciate that he may well have changed his name to an English version of it.
Where can I go from here ??
Incidentally I found that New Year died aged 40 and Augusta remarried a chap called Chinnock.
I would love to be able to find out some more about the German connection!
Thanks
Liz