Thomas married Eliza Smith. Eliza was born about 1821; died in 1843; was buried on 6 Jul 1843 in St Giles in the Fields Church, Holborn, Middlesex, England. [Group Sheet]

1. Eliza Harmer was born in 1841; and died.

Thomas married Sarah Willes on 21 Nov 1843 in Christ Church, Southwark, Surrey, England. Sarah (daughter of Robert William Largent Willes and Elizabeth Linley) was born on 15 Mar 1828 in Wild Street, St Giles in the Fields, Middlesex, England; was christened on 16 Apr 1828 in St George's Church, Bloomsbury, Middlesex, England; died in 1856 in St Pancras, Middlesex, England; was buried on 30 Nov 1856 in St Pancras Cemetery, East Finchley, Middlesex, England. [Group Sheet]

1. Emily Harmer was born between 1 Oct 1845 and 31 Dec 1845 in St Pancras, Middlesex, England; died between 1 Jul 1899 and 30 Sep 1899 in St Pancras, Middlesex, England.
2. Caroline Harmer was born in 1847 in St Pancras, Middlesex, England; and died.
3. Frederick Thomas Harmer was born in 1849 in St Pancras, Middlesex, England; died in 1908 in St Pancras, Middlesex, England.
4. Harriet Harmer was born in 1852 in St Pancras, Middlesex, England; died in 1858 in Middlesex, England; was buried in 1858 in Islington Cemetery, East Finchley, Middlesex, England.
5. Elizabeth Harmer was born in 1854 in St Pancras, Middlesex, England; died in 1855 in St Pancras, Middlesex, England.