he probably died in the civil war as many of them did and are buried here in va try find a graveand select va he is most likely here ... There is a Patrick Oconnor in Hampton National Cemetery. My family is also Oconnor coming over from Ireland 1848-1851. Also faught in the civil war but we have two brothers on opposite sides. Our Oconnor is Mary Ann b1846 came to America 1850 married Michael J Brennan first living in Brooklyn then the family moved to Ohio and some moving into Portsmouth Va.