| Father | Felix O'NEILL (1821 - 1896) |
| Mother | Rosanna/Rosannah A. MCHUGH (1825 - 1917) |
| Sibling | James O'NEILL (1850 - 1898) |
| Sibling | Mary Jane O'NEILL (1851 - 1937) |
| Sibling | Michael O'NEILL (1852 - 1923) |
| Sibling | Margaret Lucinda O'NEILL (1854 - ) |
| Sibling | Catherine O'NEILL (1857 - 1932) |
| Sibling | Rosalia O'NEILL (1859 - 1935) |
| Sibling | Henry O'NEILL (1861 - 1937) |
| Sibling | John Francis "Frank" O'NEILL (1864 - 1937) |
| Sibling | Vincent Thomas O'NEILL (1866 - 1882) |
| Sibling | Susan Bridget O'NEILL (1870 - 1935) |
| Sibling | William P. O'NEILL (1873 - 1911) |