I dearly wish we did share the same ancestors. I'm really struggling to get any further back than 1812. All I know is that my great great grandfather William Coghlan was born in Co. Carlow in 1812. His wife Margaret Gregan was born in Westmeath in 1813. I found them on the 1841 census return in Manchester, England, living in the Picadilly area of the city. All of their five children seem to have been born in Manchester. His occupation was Boot and Shoe Maker.