William Arthur Douglas
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| Breton Douglas Norman Langridge | |
| B: | 1919 |
| North Perth, Western Australia, Australia | |
 | Joan Ivy Langridge 1921- |
| Joan Ivy Langridge | |
| B: | 1921 |
| Perth, Western Australia, Australia | |
| Ivy Rose Douglas 1896-1931 |
| Ivy Rose Douglas | |
| B: | 1896 |
| Albany, Western Australia, Australia | |
| D: | 1931 |
| Inglewood, Western Australia, Australia | |
| Frank Norman Langridge | |
| M: | 1918 |
| Perth, Western Australia, Australia | |