| Father | Richard MCCORMACK (1862 - 1930) |
| Mother | Maria DOWLING (1866 - 1917) |
| Sibling | Anne Mary (Annie May) MCCORMACK (1890 - 1965) |
| Sibling | Norah Josephine (Ciss) MCCORMACK (1891 - 1969) |
| Sibling | James Michael MCCORMACK (1892 - 1959) |
| Sibling | Margaret Elizabeth (Lily) MCCORMACK (1893 - 1973) |
| Sibling | Christina (Chrissie) S. MCCORMACK (1894 - 1976) |
| Sibling | Julia (Lulu) Mary MCCORMACK (1896 - 1930) |
| Sibling | Johanna Gertrude (Gertie) MCCORMACK (1897 - 1992) |
| Sibling | Mary Kathleen B. MCCORMACK (1899 - 1942) |
| Sibling | Richard Augustine MCCORMACK (1900 - 1900) |
| Sibling | Bridget (Bridie) Angela MCCORMACK (1902 - 1995) |