'Page 28, 1. 7 from bot. bef. ANDREW, ins. ALEXANDER [Allen], Windsor, eldest s. of [Alexander Allen] m. 17 May 1716, Hannah, prob. d. of John Marshall of W. wh. d. 30 Nov. 1772, aged 77, ...'
The Ancestral File assigns the death date of 30 Nov. 1772 to Hannah Marshall, the daughter of David Marshall and wife of John Owen. From this source, it can be seen that it was a different Hannah Marshall who died on that date.