I have an Edward Bentley b: 31 Jul 1832 Salford, Lancashire, England d: Abt 1876 that was the son of John Bentley and Elizabeth Middelfell; his wife was also a Hannah, Hannah Arnold, M: Abt 1859.
Is this your line?
If so that is all the information I have on that line.
Going the other way, my information stops with the parents of John Bentley and Elizabeth Middelfell.
If you would like to email me directly you can do it at: dcraw1 at tampabay.rr.com - just remember to take out the spaces and at and replace them with the @.