Hi Diane,
I have relatives from Co. Mayo. Maybe a town outside of Crossmolina. The names would be Martin Bryon (1805) father Patrick married to Mary ? They have Bridget 1830-33, Mary (1836), Ellen (1839) and Margaret (1843). They leave Co. Mayo to Leeds, England around 1847ish. With or without Mary the mother. She is not listed on the 1851 census with the family in Leeds. Not sure where she died.
The other family from Co. Mayo is Anthony Nallan (1828-30). His father is Michael. Anthony is in Leeds by 1850. I am not sure the Byron family surname is Byron in Co. Mayo. Could possibly be Byrne.
Any help would be much appreciated.
Thank you
Mary