The St. John Genealogy Project
Origin and Ancestry DNA Database & Electronic Archive
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 | Sarah Chase (1735-1775) |
 | Ambrose de Port-St. John (1760-1823)  |
| John Francis Seymour Fleming de Port-St. John (1761-1832) |
| St. Andrew de Port-St. John (1766-1836) |
| Henry de Port-St. John (1768-1833) |
| Sarah de Port-St. John (1770- ) |
| Mary de Port-St. John (1771- ) |
| Thomas de Port-St. John (1765-1827)
|
| Frances Lavie ( -1810) |
| Thomas de Port-St. John (1797-1834) |
| Frances de Port-St. John (1801- ) |
| Captain Oliver de Port-St. John (1803-1844) |
| Robert de Port-St. John (1805- ) |
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