Peter Seaver

I am researching the Seaver family of Lusk Parish. Peter Seaver (b. 1793) inherited the Rogerstown farm from his father Patrick Seaver. Many I have come across cite his parents as Patrick Seaver (b. 1770) and Mary Dollard (b. 1775 in Skerries). They married in 1795. If they are his parents, he was born 2 years before their marriage, which would have been unusual in those times. Peter married Alicia Corbally. I have found it very hard to find records for Peter. If anyone can help with records that confirm his parents, I would much appreciate it. My reason for this is I am trying to confirm Patrick Seaver who married Mary Dollard as Peter's parents. Thank you.