Thanks for the info. Warrington's main industry at the time was wire, so it might be that my Great Grandad worked a static engine in the wireworks, which wasn't far from where they lived. The town is also at the crossroads of the Manchester/Liverpool and what is now the west coast main railway line, so maybe he worked on the railways? The local wireworks may have kept employee records, I'll see what I can find at the library.
What I was really thinking about was how they actually travelled to Warrington, what route they would have taken, and what the conditions would have been like, how long it would have taken, and stuff like that. I just can't imagine what the roads were like, or where they would have stayed etc. especially with a young family. Unfortunately the baby died not long after they arrived in Warrington, but they did have more children, including my grandad!