Family: William Ethelbert MASON / Helen Agnes COCKBURN (F518)
m. 10 Jun 1891William Thomas MASON (1824-1882) 
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Mary LAWRENCE, .xii (1829-1921)
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Lieut Col. Percival Lawrence MASON (1857-1938)  |
| William Effingham MASON (1859-1860) |
| Alfred EFFINGHAM MASON (1860-1940) |
| Arthur Herbert MASON (1862-1916) |
| Bertha Elizabeth MASON (1864-1929) |
| Thomas Harold MASON (1868-1956) |
| Edward Morley MASON (1870-1873) |
| John Franklin MASON (1873-1873) |
| Lillia MASON (1862- ) |
| William Ethelbert MASON (1866-1951)
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| Helen Agnes COCKBURN (1867-1947) |
| Helen Maude Lucile MASON (1892-1978) |
| Harold Ethelbert MASON (1895-1957) |
| Percival Edgar MASON (1897-1914) |
| Herbert Cockburn MASON (1906-1986) |