Family: Joseph Knight Trevithick / Jane Swaine (F189)
m. 24 Aug 1849 | Richard Trevithick (1783-1845) 
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| Blanch Knight (1788-1828)
|
| Elizabeth Trevithick (1811-1812) |
Elizabeth Trevithick (1813- )  |
| Richard Trevithick (1813- ) |
| Mary Trevithick (1816-1833) |
| Sarah Trevithick (1817- ) |
| Blanche Trevithick (1818-1910) |
| John Trevithick (1819-1819) |
| John Trevithick (1822-1889) |
 | Thomas Trevithick (1824- ) |
| Francis Trevithick (1827-1833) |
| Fanny Trevithick (1827-1828) |
| Joseph Knight Trevithick (1823-1880)
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| Jane Swaine (1832- ) |
| Sarah Jane Trevithick (1850- ) |
| Joseph Trevithick (1858- ) |
| Richard Trevithick (1859- ) |