My greatx2 grandfather Alexander Sinclair was born in Ulster. I have just discovered he had an elder brother Archibald who according to the 1851 census was born in Argyll, Islay; however the 1861 census gives his place of birth as Ireland Their parents were Alexander Sinclair, a linen weaver, and Margaret Morrison. My concern is to establish whether the Islay link is plausible. Can anyone confirm whether there was a weaving industry, linen or otherwise, in Islay and whether there was a decline in the early 1800s that would result in a family moving to Ulster. Any other thoughts or suggestions are very welcome. Alex.