Father |
| Henry Lock | between January 1854 and March 1854 |
Mother |
| Sarah Jane Relland | about 1854 | between April 1895 and June 1895
Sister |
Sophia Jane Relland Lock |
between October 1877 and December 1877 |
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Sister |
Mary Grace Lock |
between October 1881 and December 1881 |
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Brother |
Frank Lock |
between January 1883 and March 1883 |
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Sister |
Jessie Lock |
between April 1884 and June 1884 |
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Sister |
Bertha Lock |
between July 1885 and September 1885 |
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Annie Lock |
between October 1886 and December 1886 |
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Brother |
William Henry Lock |
between October 1890 and December 1890 |
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Sister |
Agnes Valentine Lock |
between January 1892 and March 1892 |
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Brother |
Ernest Richard Relland Lock |
7 April 1895 |
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