John Parker Mosley, 1st Bart was born 1732 in Lancashire, England, United Kingdom to Nicholas Mosley (1694-1734) and Elizabeth Parker (c1665-?) and died 29 September 1798 Rolleston on Dove, Staffordshire, England, United Kingdom of unspecified causes. He married Elizabeth Bayley (c1730-1797) 1 April 1760 in Lancashire, England, United Kingdom.
Children
| Name | Birth | Death | Joined with |
| Oswald Mosley (1761-1789) | 17 March 1761 | 27 July 1789 | Elizabeth Tonman (?-?) |
| John Peploe Mosley (1766-1833) | |||
| Ashton Nicholas Mosley (1768-1830) | |||
| Elizabeth Mosley (1770-1853) | |||
| Frances Mary Parker Mosley (1770-1844) | 1770 | 5 July 1844 | George Smith (1765-1836) |
| Anne Mosley (1777-1810) | |||
| Penelope Mosley (c1779-1812) | 1779 Manchester, Lancashire, England, United Kingdom | 30 August 1812 | Henry Every, 9th Bart (1777-1855) |
Footnotes (including sources)
| ‡ General |