has anybody still got a photo of the memorial they could send me, my grandads brother gunner John Jacques is named on it also William Jacques his uncle.

If you look on the Sheffield history you will find a picture of it posted by Deansgirl who has done sterling work on recording such WW1 memorials
http://www.sheffieldhistory.co.uk/forums/index.php?showtopic=3562&pid=17781&mode=threaded&start=#entry17781
You may have to register to view it

There is also a thread on here about the street and one of the contributors has a list of the names
http://www.sheffieldforum.co.uk/showthread.php?t=5391&highlight=Dolphin+Street