I am the son of John Izatt Clark, who is the son of John Izatt Clark--who it seems had a father of the same name. My grandfather and great grandfather came to the US to southern Illinois in 1921 from coal mine areas south of Glasgow. Aside from the manifests I was able to find from Ellis Island.org, I have one photo of my great grand father sitting on a porch smoking a pipe with a glass of whiskey in his hand. If there are any indications of a line of John Izatt Clarks coming from the John Izatt line you are working, please let me know. He came to the states to mine coal, but was also reportedly a wood worker. Lanarkshire (north and south) are where the childrens brith towns were. Douglas, Douglas West, Kirkonnel, Auchinlech areas.