| Attestation(s) | Federated | Family Name | Given Names | Date of Birth | Place of Birth |
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| Mackay | Albert Frederick | 1889-05-24 | -- |
|
|
| Mackay | Anzel Venor | 1897-04-02 | Stanley Section, NS |
|
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| Mackay | Atwood Talbot | 1884-03-09 | Montague, PE |
|
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| Mackay | Carroll Everett | 1895-12-27 | New Canada, NS |
|
|
| Mackay | Charles | 1879-05-20 | Northfield, NS |
|
|
| Mackay | Charles L. | 1892-04-12 | Queenstown, Ireland |
|
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| Mackay | Colin | 1889-09-06 | Saint John, NB |
|
|
| Mackay | Frederick B. | 1894-10-31 | Barton, NS |
|
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| Mackay | George Alexander "Sandy" | 1871-05-09 | St. Stephen, NB |
|
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| Mackay | John Duncan | 1890-05-16 | Fredericton, NB |
|
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| Mackay | John Keiler | 1891-07-11 | Pictou, NS |
|
|
| Mackay | Malcolm | 1891-10-06 | Sussex, NB |
|
|
| Mackay | Reay | 1895-05-14 | Saint John, NB |
|
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| Mackay | William Duncan | 1886-01-22 | Saint John, NB |