John O'Riley/ Reilly & Anna Littlefield 1818 Lavey

I am researching Anna Little (littlefield) marriage to John (O'Riley) Reilly (DOB 13 FEB 1818) Lavey Parish, Cavan between 1840 - 1846.

Seeking lead on marriage record with Anna Little (DOB 1820) in County Cavan(?) circa 1840-1848.

John O'Riley/Reilly is rumored to be the son of Philip Reilly (O'Riley) DOB 1797 and Honora Higgins (1797-1880), born in Ireland.

John O'Riley had brothers Matthew and Patrick. They all lived in Troy, Rennselear County, New York, USA in 1845-1849.

I have been unable to confirm the information on anyone before 1843 except for John O'Riley and Anna Little in the US

Relatives lead is an un-cited transcript from Cavan Cathedral record review: John Rielly, Drumdummonn Parish, Cavan, Ireland - Cartron free Ann Little, Crosserlough, Kiffagh Parish, Cavan, Ireland or Ann Little, Drumgoon Parish, Munndly T Cootehill, Ireland.

John (29) & Ann (27) arrived in Boston on the ship Columbus, Manifest 13121 from Liverpool, England with John’s brother Michael on 03 JUL 1848 as Anna Riley, with correct DOB & traveling with John O'Riley.

I am missing the link to Ireland to either John's birth parents(unknown) or Anna's birth parents ( Patrick Little/Littlefield(?) and Margaret/Mattie Cusack(?)).

Unfortunately, the oldest living relative has passed and the records are in the wind.