Again, wow. You lot know a lot more than I do. Everything you have pointed me to so far has been what I am looking for. With regards to John L Donkin, I didn't know he went backwards and forwards to Canada, or that my g.uncle Alexander was with him. That is a turn up for the books. If he went to Halifax then he must have gone to relatives there. I just need to check out which of the Donkins lived there during this period. I have photographs of him with some other people, but don't know who they are.
I only wish I had asked more questions when I was younger, but I do have a couple of cousins who are in their 80's who's grandmother knew an awful lot of things. One of my cousins has admitted that she now wishes she had listened more to her. You never know though, she may remember something. Worth a visit up to see her. She may know of other cousins living in our area who I don't know.
Thanks for all the information and pointers you have given me.
Kath