I realise that this thread is now several years old but I'm hoping that some of those who have been participating are still keeping tabs on it.
I am also descended from the same Sherriff family - my grandfather, Henry, is the brother standing between Tom and Sid in the photo which Kiteflyer posted!
I have a copy of this photo too (although not in such good condition!), it was given to me by my second cousin Fred who is the grandson of the fourth brother, Bill, who is sitting alongside father William in the photo.
There were two other brothers, by the way, who aren't in the photo - Arthur (Art) and Herbert (Bert).
Keeping my fingers crossed that the rest of the Sherriff clan are still reading this!
Chris