| Name | Birth date | Death date |
|---|---|---|
| Joan de Terrers | Unknown | |
| Joan Downe | Unknown | |
| Joan Fleming | Unknown | |
| Joan Trenance | Bet. 1526 - 1543 | Bet. 1526 - 1543 |
| Joan Whitston | Unknown | |
| Joe Kelly | Unknown | |
| Joe Mossman Patterson | Unknown | |
| Joe Rial Kenimer | Unknown | |
| Joe Smith | Unknown | |
| Joel de Valletort | Unknown | Unknown |
| Johann Hennrich Manderbach | 16 Feb 1743/44 | Unknown |
| John Ambrose Christopher | 19 Nov 1860 | Unknown |
| John Anderson Christopher | 13 Aug 1826 | Unknown |
| John Badcock | Bet. 1600 - 1620 | 13 Jan 1683/84 |
| John Bascom Lee | Jun 1895 | 11 Aug 1973 |
| John Bathurst | Unknown | |
| John Belfield | 1650 | Unknown |
| John Benjamin Moran | 1792 | Oct 1833 |
| John Bledsoe | Abt. 1716 | Bet. 1800 - 1801 |
| John Bledsoe | Abt. 1680 | 1728 |
| John Butler | Unknown | |
| John C. Patterson | Unknown | |
| John Cantalupe | Unknown | |
| John Carmynow | Unknown | |
| John Cheyndut | Bef. 1297 | Aft. 1318 |
| John Christopher | Abt. 1878 | Unknown |
| John Clements | Unknown | |
| John Coldwell Lotz | Private | |
| John de Mohun | 1331 | |
| John de Mohun | Unknown | |
| John de Mohun | 1268 | 1330 |
| John de Mohun | 1278 | |
| John de Penkevill | Unknown | Aft. 1294 |
| John de Penkevill | Unknown | Aft. 1342 |
| John de Penkevill | Aft. 1265 | |
| John de Valletort | Unknown | Aft. 1250 |
| John Downe | Unknown | |
| John Downe | Unknown | |
| John F. Boyd | Unknown | |
| John Fleming | 1817 | Unknown |
| John Fleming | Unknown | Unknown |
| John Godolphin | Unknown | Aft. 1504 |
| John Goode | Unknown | |
| John Goode | Bet. 1780 - 1790 | Unknown |
| John Goode | Bet. 1580 - 1590 | Unknown |
| John Goode | Bet. 1620 - 1630 | 1709 |
| John Goode | Bet. 1670 - 1680 | Bet. 1720 - 1730 |
| John Harris | Unknown | |
| John Hugh Wilson | Unknown | |
| John Jay | Unknown |