George "Evit" married Margaret Kavanagh in New Ross, 7/Oct/1856.
Well done Wexflyer
So George's birth in 1833 (as seen on his seaman's MATES certificate, and crew lists) would seem most likely.
His second wife was quite a lot younger, So George adjusted his age accordingly.
His address on that certificate is High Hill, New Ross, which is where daughter Margaret was born in 1864.