Hoping someone can help please

I'm trying to find information about the family of (and especially the parents of) John SCOTT who was born circa 1778 in Paisley, Renfrew. (According to his 1841 census entry in Dalserf, Lanark.). John, whose occupation was a weaver, married Mary FERGUSON in Barony, Lanark in 1799 and so far I have identified these children:
William 1800 (born Glasgow, Lanarkshire)
Janet 1803 ( born Isle of Man)
John 1805
Thomas 1809-1809
Elizabeth 1810
Robert Moor 1812
Thomas 1814
Alexander 1816 (all of the above born in the Isle of Man)
Alexander 1819 (born Glasgow, Lanarkshire)
Any advice much appreciated

Dorothy