this is more likely the one. which makes me wonder are there 2 James and Elizabeth Barkers, where this Nathaniel comes in, as there are twins in the family line of Nathaniel, but none in my line, there is also an Isaac Barker born abt 1813 who married a Merriam, that was thought to be a brother of Nathaniel.. All very confusing as my there is an Isaac Barker also a bricklayer involved here.
I will post when more info is sorted; thanks