| Birth | 21 October 1899 26 24 |
| Christening | 26 November 1899 (Age 36 days) |
| Birth of a brother | Reginald Mark Mason 15 November 1901 (Age 2 years) |
| Christening of a brother | Reginald Mark Mason 2 December 1901 (Age 2 years) |
| Death of a brother | Reginald Mark Mason 12 March 1902 (Age 2 years) |
| Birth of a sister | Louise Mason 20 December 1902 (Age 3 years) |
| Christening of a sister | Louise Mason 20 December 1902 (Age 3 years) |
| Birth of a sister | Mabel Ismay Mason 12 January 1909 (Age 9 years) |
| Christening of a sister | Mabel Ismay Mason 21 February 1909 (Age 9 years) |
| Last change | 14 February 2005 – 22:56:23 |