Sorry, I wrote John instead of James, so it should read:

The inconsistent thing is that, if James and John were brothers with father William Coulthard and manx mother Alice, James's place of birth would have been IOM, not Cockermouth ---- unless James had actually been born while his mother was in Cockermouth and then taken back to the IOM for baptism. Assuming that this scenario is possible, then you've got: