Father |
| Jonas Coaker | about 1818 | about March 1895
Mother |
| Jane Blatchford | about 1831 | between January 1917 and March 1917
Sister |
Livinia Jane Coaker |
between April 1855 and June 1855 |
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Brother |
Charles Coaker |
between October 1856 and December 1856 |
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Brother |
Mark Coaker |
between July 1858 and September 1858 |
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Brother |
Alfred Coaker |
6 April 1861 |
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Brother |
Edwin Coaker |
between October 1864 and December 1864 |
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Ernest Blatchford Luke Coaker |
between July 1866 and September 1866 |
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Brother |
Herbert Jonas Coaker |
between January 1869 and March 1869 |
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Brother |
Frank William George Coaker |
2 July 1871 |
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Brother |
Wallace Parnell Coaker |
between July 1872 and September 1872 |
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Brother |
Sydney Brooks Coaker |
between April 1875 and June 1875 |
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