Thanks. I was afraid that the Latin name might not match.
I don't know if he had any siblings, or if he was the first born... There's literally nothing on his family (other than the unverified names on his death record), or his life before coming to the US.
The marriage information actually came from his Civil War pension file; no record exists due to a fire.
Really, the only "proof" I have that he's from Ireland is from him, on census records and other self-reported documents.