| Birth | 4 Jun 1876 | Llanddewi Brefi, Cardiganshire | | | |
| Residence | 1881 | with her parents - Ty'n Porth, Llanddewi Brefi, Cardiganshire | | | |
| Residence | From 1891 to 1901 | with her parents - Green Ffald, Llanddewi Brefi, Cardiganshire | | | |
| Marriage | Abt May 1901 | Pontypridd Registration District, Glamorganshire - Peter NIGHTINGALE | | | |
| Residence (family) | 1911 | 31, Glancynon Terrace, Abercynon, Glamorganshire - Peter NIGHTINGALE | | | |
| Residence (family) | 19 Jun 1921 | with Mary's widowed father - Maesyronnen, Llanddewi Brefi, Cardiganshire - Peter NIGHTINGALE | | | |
| Residence | 29 Sep 1939 | 1, High Street, Llanddewi Brefi, Cardiganshire | | | |
| Death | 1951 | Cardiganshire Central Registration District | | | |