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| Father | Male John Ernest Hallmark |
| Born | 14 Jan 1879 | |
| Christened | Feb 1879 | Tiltson, , , England |
| Died | Yes, date unknown | |
| Buried | ||
| Married | 2 Oct 1907 | |
| Father | John Bithell Hallmark | F1260 Group Sheet | |
| Mother | Harriet Borrows | F1260 Group Sheet | |
| Child 1 | Male + John Andrew Hallmark |
| Born | 21 Jun 1909 | |
| Died | 13 Oct 1974 | Llandudno, , , England |
| Buried | Oct 1974 | |
| Spouse | Mary Archold | F1264 | |
| Married | Bef 1946 | |
| Spouse | Kathleen Rosemary Sears | F1265 | |
| Married | 31 Dec 1951 | |