Hope you've got room for a few more Skeltons in the USA. Going back to your William 1850. He had a brother Robert born 1839 England who also appears to be in the USA ? Or is this cooincidence ?
Stanford, Fergus, Montana.Utica, Stanford & Denton Districts, Fergus, Montana. Had 10 children. 8 still alive.
Robert Skelton 60 Married in 1875. Farmer. Says year of immigration 1843 but that can't be right.
Mary Skelton 44 .Born 1856 Canada. Year of immigration 1873
Effie Skelton 24 born Iowa
William Skelton 23 born Iowa
Ruth Skelton 21 born Iowa
Robert W Skelton 20 born Iowa
Floyd Skelton 18 born Iowa
Harry Skelton 16 born Montana
Albert Skelton 13 born Montana
Goldie Skelton 6 born Montana