Marley/Kelly/McGlin Lettermakenny

I have evidence from Griffiths of Michael Marley in Lettermakenny in 1830 which fits with a census document from Milton of Campsie, Scotland,

in 1861 in which several of his children are listed as being born in Lettermakenny. Michael married Roseann Kelly who died in Milton in 1855 at the age of 76 having come to Scotland in 1850. Her parents were Charles Kelly and Hanna McGlin of whom I can find no trace to date. I can find no trace of Michael coming to or having been in Scotland and must assume he died in Ireland before Roseann moved to Scotland. If anyone can shed any light on my family I would be eternally grateful. Kind regards Adrian Marley