Thanks for all the help everyone,
I think I had come to the conclusion that the JORDIN's I found in 1881 were a mis-recording, since I couldn't find them after that date. I think I found some JORDAN's that could have been them, but it was difficult to be certain.
There is no other record of JORDIN's from the north west that I have found. It's possible they did eventually migrate to the USA as there are plenty of JORDIN'S there, and I don't seem to have lost any of the other branches of the tree abroad.
Something to follow up when I get finished with the family in this country....

Thanks for the help,
Adrian