The big giveaway about whether an accent is Lancs or Yorks is that in the former an 'r' in the middle of a word (burn, person, etc) is sounded, but not in Yorks. Here's an learned account of what's happening:
https://en.wikipedia.org/wiki/Rhoticity_in_English
In this respect Lancs speech has more in common with that of of the US than with Yorks!