Cognomen Riddiford (Riddiford 
) , in the world, is a rare surname. The last name Riddiford is habitual in New Zealand, where it is quite a rare surname, Australia, where it is a rare surname, and the United Kingdom.
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| Riddiford | United Kingdom, Canada, Australia, New Zealand, United States |
| edward joshua riddiford Runholder, NZ (b. 1842) |
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| thomasine riddiford (1846-1942) (b. 1846) |
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dan riddiford New Zealand politician, NZ (b. 1914) |
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| daniel h. s. riddiford New Zealand farmer, NZ (b. 1883) |
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| ngaire riddiford (1895-1970) (b. 1895) |
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| rosamond mary riddiford (1915-1973) (b. 1915) |
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| lynn riddiford American entomologist, US (b. 1937) |
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| nicky riddiford New Zealand ESL educator, NZ (b. 1952) |
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| phyllis riddiford [Barnicoat] - 1887:? - Daughter of William Hodgson Barnicoat, barrister of Wanganui, and granddaughter of the late Hon W Barnicoat. First wife of Eric Leslie Riddiford. Married in 1909. They separated some time before his marriage to his second wife |
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| daniel riddiford Peerage person ID=667162 |
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| eric leslie riddiford 1884:1951 - Son of Edward Joshua and Eleanor Caroline Riddiford. Foundation member of the National Repertory Society in 1926. |
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| john sydney riddiford 1911:1977 - Son of Meta and D H S Riddiford. Was in 32nd Wellington Battalion 2NZEF in WWII and a POW for 3 years. |
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| daniel riddiford Peerage person ID=498571 |
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| edward vivian riddiford [Viv] - 1879:1934 - Eldest son of Edward Joshua Riddiford (1842-1911). Married Zoe George (great-niece of Sir George Grey) |
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| nick riddiford researcher |
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