| Father | John HALLORAN (1868 - 1923) |
| Mother | Johanna HAYES (1878 - 1954) |
| Sibling | Patrick O'HALLORAN (1897 - ) |
| Sibling | Timothy O'HALLORAN (1898 - 1980) |
| Sibling | Mary Catherine O'HALLORAN (1900 - ) |
| Sibling | Johanna Mary O'HALLORAN (1901 - ) |
| Sibling | John O'HALLORAN (1903 - 1919) |
| Sibling | Edmund O'HALLORAN (1905 - ) |
| Sibling | Helen O'HALLORAN (1911 - ) |
| Sibling | Thomas O'HALLORAN (1912 - ) |
| Sibling | Bridget O'HALLORAN (1914 - ) |
| Sibling | Catherine O'HALLORAN (1916 - ) |
| Sibling | Maurice O'HALLORAN (1918 - ) |
| Sibling | Michael O'HALLORAN (1920 - ) |