Thomas married Mercy Balcombe on 2 Jun 1729 in St Mary the Virgin Church, Ringmer, Sussex, England. Mercy (daughter of John Balcombe and Anne) was born in 1707 in Glynde, Sussex, England; was christened on 2 May 1707 in Glynde, Sussex, England; died in 1765; was buried on 5 Feb 1765 in Ringmer, Sussex, England. [Group Sheet]

1. Anne Longley was born about 1732; and died.
2. Thomas Longley was born about 1736; and died.
3. Martha Longley was born about 1738; and died.
4. Samuel Longley was born about 1740; and died.
5. Catherine Longley was born about 1742; and died.
6. Sarah Longley was born about 1745; and died.
7. Stephen Longley was born about 1747; and died.
8. Mary Longley was born about 1751; was christened on 17 Mar 1750/51 in Ringmer, Sussex, England; died in 1832 in West Firle, Sussex, England; was buried on 5 Aug 1832 in St Peter's Church, West Firle, Sussex, England.