Nice to have contact with a distant relative and glad to have been of some assistances. The Gratton line to John becomes complicated as they all seem to be called Amos, but here is some further information I've found.
26 May 1752 Marriage of Amos Gratton (1) to Elizabeth Wood @ Exton Church. 9 Jan. 1763 Baptism of Amos Gratton (2)- Son of Amos (1) and Elizabeth (Wood) @ Exton. 20 Mar. 1785 Burial of Amos Gratton (1) @ Exton. 19 May 1787 Marriage of Amos Gratton (2) to Elizabeth Lawfull.
With regards to Mary Gratton (Hole) she was baptised @ Luxborough on 15 Feb. 1800 the daughter of John & Mary (Baker). John who was a widower at the time, married Mary Baker at the same church in Luxborough on 8 April 1799.
I have no news of the Lawfull line as yet, but Elizabeth Gratton (Wood) was baptised 29 May 1730 the daughter of Nicodemus Wood(2)& Margaret Bristow at Brushford.They married at Brushford on 3 April 1718.
Nicodemus Wood(2) was the son of John & Agnes(Elsworthy) & was baptised @ Exton in 1689.John & Agnes were married in 1677 @ Exton.
John Wood was the son of Nicodemus Wood (1) and Wilmot Bowden and was baptised in July 1656 at Exton. I have been unable to find the marriage date for them.