I have a GG Grand father James Ahern (later to assume the surname Ahearn) who married a Mary Maloney/Moloney in Sydney around 1855. It is possible that he could have married very young, as he was only 12 years old when he came here on the Earl Grey in 1851, with the rest of his family. There are numerous references to a James Ahern in NSW and I am trying to confirm which one might be the right one. Any help would be greatly appreciated. He lived in and around the Double Bay, Woollahra and Paddington areas, where most of his children were born.