I note with interest that you have a Robert Dyball b. 1834. My great great grandfather was a Robert Dyball born in beeston, Norfolk and the 1881 census gives his age as 52. This is very possibly either the same man or even a cousin.
I am fascinated by coincidences and you may be interested to know that my great grandfather was born on the 14th February 1871 and was named ALBERT VALENTINE DYBALL
Somewhere along the way we must be related, there aren't a lot of Dyballs so i do hope this message gets to you,Cousin!! My general research leads me to believe that it was originally a German name Diebelle and I have noted connections with Brandenburg.
My Robert Dyball moved to Blackburn in Lancashire and had quite a few children. I have a picture somewhere of Albert Valentine and when I get myself organised will send it you if you like.
I still live in Blackburn, and am a musician and teacher.