| Surname | Forename(s) | Town | Occupation | Date | Ref. No. | |
 | Jacks |
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 | Jacob |
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 | Jacson |
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 | Jagger |
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 | Jane |
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 | Jankyn |
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 | Jardine |
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 | Jarman |
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 | Jarvis |
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 | Jebb |
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 | Jeece |
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 | Jeffery |
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 | Jefferys |
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 | Jeffreys |
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 | Jeninges |
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 | Jenkins |
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|
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 | Jenks |
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|
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 | Jenninges |
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 | Jennyngs |
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 | Jenour |
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|  |
 | Jephson |
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 | Jesper |
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 | Jessop |
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 | Jevons |
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 | Jodrell |
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 | John |
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 | Ap Cadwaladr |
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 | Ap David Ap Atha |
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 | Ap David Ap Edward |
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  | Ap David Ap Gruffith Ap Ieuan |
|  |
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 | Ap David Ap Gruffith Ap Robert |
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 | Ap David Ap Hoell |
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  | Ap David Ap Ieuan Ap Llewelyn |
|  |
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 | Ap David Ap Ieuan Ap Rees |
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 | Ap David Ap Jankyn Ap Robert |
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 | Ap David Ap John (Otherwise Dackyn) |
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  | Ap David Ap Llewelyn Ap John |
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 | Ap David Ap Robert |
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 | Ap Daye Robyn |
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 | Ap Edward Ap David Ap Robert |
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  | Ap Edward Ap David Ap William |
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 | Ap Edward Ap David Goch |
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 | Ap Edward Ap Gruffith |
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  | Ap Edward Ap Gruffith Ap Jankyn Ap Rees |
|  |
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 | Ap Edward Ap Howell |
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 | Ap Edward Ap John Ap Tuder |
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 | Ap Edward Ap Morys |
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 | Ap Eignion |
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 | Ap Elis Eyton |
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 | Ap Ellis Eyton |
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 | Ap Evan Ap David Ap John |
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 | Ap Evan Ap Madoc |
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 | Ap Goronu Ap John |
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 | Ap Gruffith |
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  | Ap Gruffith Ap David Lloid |
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 | Ap Gruffith Ap Edeneved |
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 | Ap Gruffith Ap Nicholas |
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 | Ap Gruffith Ap Tuder Ap Ieuan |
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 | Ap Harry |
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 | Ap Harry Ap Robert |
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  | Ap Henry Ap David Ap Thomas |
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 | Ap Hilyn |
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  | Ap Hoell Ap David Ap Gruffith |
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 | Ap Hoell Ap David Ap Hoell Ap Badye |
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  | Ap Hoell Ap Ieuan Ap Gruffith |
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 | Ap Hoell Ap Ieuan Ap Robin |
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 | Ap Hoell Ap Jenkyn |
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  | Ap Hoell Ap Meredith Ap Ieuan |
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 | Ap Hoell Vaughan |
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 | Ap Howell Ap Ieuan Ap Robin |
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 | Ap Hugh |
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 | Ap Hugh Ap Edward |
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 | Ap Hugh Ap Hoell David Ap Ieuan Bach |
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 | Ap Hugh Ap Ieuan |
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 | Ap Hugh Ap Ieuan Vychan |
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 | Ap Hugh Powell |
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 | Ap Humphrey Ap Hugh Ap Hoell |
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 | Ap Ieuan Ap David |
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  | Ap Ieuan Ap David Ap John |
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 | Ap Ieuan Ap David Lloyd |
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 | Ap Ieuan Ap Eignion |
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  | Ap Ieuan Ap Gruffith Ap Llewelyn |
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 | Ap Ieuan Ap Hugh |
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 | Ap Ieuan Ap Owen |
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 | Ap Ieuan Gruffith |
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 | Ap Ieuan Tona |
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  | Ap Iollyn Ap Gruffith Ap Ieua Ap Grono |
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 | Ap Ithel Ap Edward |
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 | Ap Ithell Ap Edward |
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  | Ap Ithell Ap Gruffith Ap Dio |
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 | Ap Ithell Vaughan |
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 | Ap John |
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 | Ap John Ap Edward |
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 | Ap John Ap Hoell |
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  | Ap John Ap Hoell Ap David Ap Gruffith |
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 | Ap John Ap Howell Ap Ieuan |
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  | Ap John Ap John Ap David Ap John |
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 | Ap John Ap John Ap Ieuan |
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  | Ap John Ap Nicholas Ap Thomas (Alias Johnson) |
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 | Ap John Ap Rice |
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 | Ap John Ap Richard Pigot |
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 | Ap John De Wynne |
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 | Ap John Gruffith |
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 | Ap John Kenrick |
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 | Ap John Roger |
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 | Ap John (The Younger) |
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  | Ap Lewis Ap Ieuan Ap Llewelyn |
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 | Ap Lewis Ap Robert Ap Llewelyn Ap Rees |
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 | Ap Llewelyn |
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 | Ap Llewelyn Ap Edward |
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  | Ap Llewelyn Ap Howel Ap Gronw |
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 | Ap Llewelyn Ap Jenkyn Ap Howell |
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 | Ap Llewelyn Vachan |
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 | Ap Mahallt Verch John Ap David Lloyd Ap Hoell Ap Tuder |
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  | Ap Meredith Ap Ieuan Ap Lloyd |
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 | Ap Meredith Ap Ieuan Lloyd |
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 | Ap Mores David |
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 | Ap Morgan Ap John Ap Ieuan Ap Eignion |
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  | Ap Morgan Ap John Ap Rydderch |
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 | Ap Morgan Thomas |
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  | Ap Moris Ap David Ap Gruffith |
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 | Ap Moris Ap John |
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 | Ap Moris Bad' |
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 | Ap Nicholas Ap Jankyn |
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  | Ap Owain Ap Ieuan Ap David |
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 | Ap Owen |
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 | Ap Raynold |
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 | Ap Rees Ap David |
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  | Ap Rees Ap David Ap Thomas |
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 | Ap Rees Owen (Alias John Smythe) |
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 | Ap Res Lloyd |
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 | Ap Rhydderch Owen |
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 | Ap Richard |
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  | Ap Richard Ap David Ap Robert |
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 | Ap Richard Ap Harry |
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 | Ap Richard Francis |
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 | Ap Robert |
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  | Ap Robert Ap David Ap Ier. |
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 | Ap Robert Ap David Lloyd |
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 | Ap Robert Ap Gruffith (Alias Bobydd) |
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  | Ap Robert Ap Ieuan Ap Hoell |
|  |
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 | Ap Robert Ap Ieuan Ap Tuder |
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 | Ap Robert Ap John Ap David Ap Robert |
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  | Ap Robert Ap John Ap Ieuan |
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 | Ap Robert Foulke |
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 | Ap Robyn Ap David |
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 | Ap Rudderch Ap Owen |
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 | Ap Rytherch Ap John Ap Morgan |
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 | Ap Rytherch Ap Rees Ap Rees |
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 | Ap Thomas |
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 | Ap Thomas Ap Lewis |
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  | Ap Thomas Ap Rees Ap Thomas Ap Evan |
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 | Ap Thomas Ap Rice |
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 | Ap William Ap David Wynne |
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 | Ap William Ap John |
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 | Ap William Ap Richard |
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 | Cadwaladr |
| |
|
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|  |
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 | David Ap Ieuan Ap Llewelyn |
| |
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  | David Ap John David Ap Gruffith |
|  |
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 | David Ap John Thomas |
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  | David Ap Llewelyn Ap Edward |
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 | David Ap Meredith |
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|  |
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 | David Thomas |
| |
|
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|  |
|
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 | Edward |
| |
|
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|  |
|
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 | Edward Thomas |
| |
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|  |
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 | Evan |
| |
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|  |
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 | Foulke Ap Thomas |
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|  |
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 | Griffith Ap Evan Lloyd |
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 | Gruffith Ap Hoell Bedo |
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 | Harry |
| |
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 | Hugh |
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 | Katherine |
| |
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 | Lloyd Ap David Lloyd Ap Elissa |
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 | Lloyd Ap Richard Lloyd |
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 | Lloyd Ap Rondle |
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 | Lowry |
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 | Mores Ap John (The Elder) |
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  | Mores Ap John (The Younger) |
|  |
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 | Morgan Thomas |
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|  |
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 | Owen Ap David Lloyd |
| |
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 | Reinald |
| |
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 | Robert |
| |
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  | Robert Ap David Ap Jenkin |
|  |
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 | Robert Ap David Ap John |
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  | Robert Ap Gruffith Ap Edward |
|  |
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 | Robert Ap Humphrey |
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 | Roger David Lloyd |
| |
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 | Rowland |
| |
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 | Thomas Ap Ellice |
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 | Thomas Ap Howell |
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 | Thomas Ap William |
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 | Tudor Ap David |
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 | Wyn Ap Cadwaladr |
| |
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  | Wyn Ap David Ap Gruffith Ap Hoell |
|  |
|
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 | Wyn Ap Hoell Ap Edward |
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  | Wyn Ap Howell Ap Edward Ap Madoc |
|  |
|
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 | Wyn Ap John Ap David Lloyd |
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|  |
|
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 | Wyn David Ap Howell |
| |
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|  |
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 | Wynne Ap Elissa Ap William |
| |
 |  | TRAWSFYNYDD | GENT | 1580 | DD/WY/2740-1 |  |
|
|
 | Wynne Ap John Ap Ieuan Ap Meredith Ap Owen |
| |
|
|  |
 | Johns |
| |
|
|  |
 | Johnstone |
| |
|
|  |
 | Jolliffe |
| |
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|  |
 | Jonas |
| |
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 | Jones |
| |
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 | Jones-Mortimer |
| |
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 | Jones-Roberts |
| |
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|  |
 | Jones Alias Evans |
| |
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 | Jones Bateman |
| |
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 | Jones Griffiths |
| |
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 | Jones Morris |
| |
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 | Jones Parry |
| |
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|  |
 | Jones (Alias Edwards) |
| |
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|  |
 | Jones (Alias Shone) |
| |
|
|  |
 | Jones, Bulkeley O |
| |
|
|  |
 | Jones, Winifred Otherwise Richards |
| |
  | Jones, (Formerly Burdett) |
|  |
 | Jones. |
| |
|
|  |
 | Jonett |
| |
|
|  |
 | Joseph |
| |
|
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 | Jowett |
| |
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|  |
 | Joyce |
| |
|
|  |
 | Judge |
| |
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 | Jury |
| |
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|  |