Family name Jephson (Jephson 
) , around the globe, is a rare cognomen. The surname Jephson is characteristic of New Zealand, where it is quite a rare surname, the United Kingdom, where it is a rare surname, and Ireland. In absolute terms, it most frequently occurs in the United Kingdom, New Zealand, and the United States. Much less frequently, Jephson is the forename as well as the last name.
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| Jephson | United Kingdom, Australia, Tanzania, United States, New Zealand |
| william jephson (c.1565-1615) of Froyle, Hants (b. 1565) |
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| william jephson (1571-1616) (b. 1571) |
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| william jephson English diplomat (b. 1609) |
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| william jephson English Member of Parliament (died 1691) (b. 1645) |
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| michael jephson Irish Anglican priest (b. 1655) |
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| william jephson Irish Member of Parliament (b. 1665) |
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| anthony jephson Irish soldier, landowner, and politician (b. 1685) |
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| william norreys jephson (1734-1791) (b. 1734) |
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| robert jephson Irish politician and dramatist, IE (b. 1736) |
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| anthony jephson (1750-1794) (b. 1745) |
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| denham jephson British Member of Parliament (died 1813) (b. 1748) |
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henry jephson English physician (b. 1798) |
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| john jephson (1764-1826) (b. 1764) |
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| james saumarez jephson British Royal Navy officer, lieutenant in 1824 (1802-?) (b. 1802) |
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| dorothea dora jephson (born 1803) (b. 1803) |
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