Hi, I note with interest, you are looking for any information about the Bose family from Hanover (Bremen)
My great Grandmother, Geshe (Jesse) Bose was born in 1845 in Benkel. Geshe moved to New Zealand as a young bride in 1870 with my Great Grandfather, Freiderick Wilhelm Sauer from Winkeldorf. The family Bose still live in Benkel and have visited us here in New Zealand. Our daughter Karyn, visited them about seven years ago. We keep in touch but the don't speak English, although the young ones in the family do. It would appear that you may be related to this family. My great uncle was also Johann Bose and we have a family history documented back to 1626. There is also a link with the "House Of Hanover" and we all know who they were. I hope this information is of interest and if you require any further information, please do not hesitate to ask.
Regards
Ivor Jones (My German grandmother married a Welshman)