Father |
| Robert Roberts | about 1831 | 4 June 1904
Mother |
| Louisa Avent Sweetland | about 1830 | between April 1873 and June 1873
Sister |
Louisa Elizabeth Roberts |
between October 1858 and December 1858 |
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Brother |
Frederick Roberts |
between July 1860 and September 1860 |
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Brother |
Alfred Robert Roberts |
between April 1863 and June 1863 |
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Brother |
William Arthur Roberts |
between July 1869 and September 1869 |
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Amy Sweetland Roberts |
between April 1873 and June 1873 |
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Father |
| Robert Roberts | about 1831 | 4 June 1904
Stepmother |
| Bessy Chave | about 1845 |
Half-sister |
Lilian Emmeline Roberts |
between July 1874 and September 1874 |
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Half-brother |
Cecil George Roberts |
between October 1876 and December 1876 |
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Half-sister |
Kate Winifred Roberts |
between October 1876 and December 1876 |
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Half-brother |
Edward John Branscombe Roberts |
between January 1880 and March 1880 |
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Half-brother |
Reginald Chave Roberts |
between April 1881 and June 1881 |
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Half-sister |
Margaret Eleanor Roberts |
between July 1882 and September 1882 |
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Half-sister |
Edith Mary Roberts |
between April 1884 and June 1884 |
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Half-sister |
Ethel Gertrude Roberts |
between October 1885 and December 1885 |
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Half-sister |
Violet Eveline Roberts |
between January 1887 and March 1887 |
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