Family report and records show my double-great grandfather born in County Fermanagh N. Ireland in 1796 or 1797. He emigrated to Virginia, and I've found quite a bit of documentation of him there but nothing in Ireland. I've read there was a fire in Dublin in 1922 which destroyed a lot of records. Is there any other way to find records of him? We have his name as John P. Johnston, born 1796 or 1797, Wikitree ID Johnston-6076.