| Family with parents |
| father |
William Charles Mason Birth: 1873 |
| mother |
Emeline Louisa Pitts Birth: 22 August 1875 — Sandys, Bermuda |
|
Marriage: 22 August 1895 — Sandys, Bermuda |
|
|
19 months elder brother |
William O'Rendell Mason Birth: 21 March 1897 24 21 — Sandys, Bermuda Death: 3 November 1897 — Sandys, Bermuda |
|
10 months elder sister |
Myrtle Pearl Mason Birth: 13 January 1898 25 22 — Sandys, Bermuda |
|
21 months elder sister |
Grace Anndyne Mason Birth: 21 October 1899 26 24 — Sandys, Bermuda |
|
2 years elder brother |
Reginald Mark Mason Birth: 15 November 1901 28 26 — Sandys, Bermuda Death: 12 March 1902 — Sandys, Bermuda |
|
13 months elder sister |
Louise Mason Birth: 20 December 1902 29 27 — Sandys, Bermuda |
|
6 years herself |
Mabel Ismay Mason Birth: 12 January 1909 36 33 — Sandys, Bermuda |
|
-13 years elder sister |
… Pitt Birth: 30 December 1895 22 20 — Sandys, Bermuda |