| Name | Cemetery | Parish | Updated |
| O'NEILL, Charles W | Greenwood & Annex #1 (Slidell) Cemetery | St. Tammany | 2019-09-03 06:00:15 |
| O'NEILL, Harvey Edward | Saint Lazarus of Bethany Cemetery | St. Tammany | 2023-10-08 10:02:25 |
| O'NEILL, Lydia | Greenwood & Annex #1 (Slidell) Cemetery | St. Tammany | 2019-09-03 06:00:15 |