John Jessop was born 1680 in Mereworth, Kent, England, United Kingdom to Passwater Jessop (c1642-1719) and Rosamond Eason (1642-1719) . He married Alice unknown .
Children
| Name | Birth | Death | Joined with |
| Passwater Jessop (1710-1757) | |||
| Elizabeth Jessop (1714-) | |||
| George Jessop (1715-) | |||
| Rebecca Jessop (1717-1773) | 1717 West Farleigh, Kent, England, United Kingdom | September 1773 Boxley, Kent, England, United Kingdom | William Usher (1712-) |
| Alice Jessop (1719-) | |||