I should have read your last post first, sorry!
Thanks again for the help and ideas. Yes, Emma (Emily) Chandler is the one - shame that her name was wrong - it took me some time to find HER originally now you will see much has happened on her line since.....
I thought that I'd checked the marriage certificate years ago BUT I will double check again because, as you say, this should give more information, although he does seem elusive at the moment.
I'll let you know!