You should have been civil and posted a thank you to the previous responder.
I searched the Irish Family History Foundation's database for Kildare. I found A marriage rcd in 1822 in Athy parish for A Patrick Hennessy and another rcd for Catharine Page in the same year and parish.
Google the Foundation's name to browse this database. Note, a detailed rcd for either the bride or the groom SHOULD give you the names of their parents, etc.