The records I have for John and Catherine include their convict documentation.I don't have a marriage certificate for them, but I have their marriage as being in 1841. John's crime was committed in Cavan as he was imprisoned in Cavan Town Gaol, tried 9 April 1846, and embarked on 31 October 1846. His crime was larceny. His wife Catherine committed a similar crime, perhaps in an effort to get the same sentence as her husband. Her larceny according to one report was in County Westmeath. She was tried in Cavan on 27 June 1846. She arrived in Hobart on 25 February 1847.
They said they had no children ay time of their trials, but there is a James Donnelly (12 years old) who arrived in Hobart on 16 Sept 1854 with Catherine Donnelly, his mother.These two lived in Tas in much the same area as the convicts. I think it very likely that this James was in fact their son and that Catherine snr was his grandmother.
I did have a report undertaken at Cavan research centre a few years ago and they were unable to find where John and Catherine lived in County Cavan. Also, they could find no record of them as being imprisoned at Cavan gaol.
Sorry I didn't reply earlier, but I hadn't realised you had posted a message. I'm not finding it too easy to navigate through the Ireland Reaching Out system.
Thanks,
Mike
Mike