Given as a weaver on the 1896 d.c of his son, Wiiliam Newton 1814-1896
1810. William Newton of Galston, married Margaret Smith at Galston Ayr on 3/8/1810 . Galston to east of Kilmarnock
Thay had William Newton 1814 & John Newton 1816 , both baptised Galston. Tree on page of William 1814
1841C there is a William Newton 50, coal miner with a Margaret 35 in Holytown, Lanarks. I do not think this is he,unless he has remarried another Margaret, as they have 4 youngish children 3-15, and his profession is not weaver..
So, I assume William Newton and wife Margaret died before 1841.