The "godson James son of James Scarff of Ballaskerrow" is odd because this will was made in 1803 but James (son of James & Catherine) wasn't baptized until 1804. They had earlier children in 1802, 1800, 1798 and were married in 1797, so that fills the gaps.

Perhaps this should have been "godson James son of John Scarff of Ballaskerrow", as James' father John was still alive in 1803. This is the Ballaskerrow family.