Dear Lorinda
Welcome to Ireland Reaching Out and apologies for the delay in getting back to you.
I had a look at rootsireland.ie but couldn't find a marriage record for Hugh and Rosanna.I couldn't find any baptism record for children to this couple either. Given the early period of your search, it may be that your ancestors were born in a parish and at a time that predates the parish records. Do you know what religion they were?
Best wishes
Clare Doyle
Genealogy Support