Thomas married Brailsford, Sarah on 19 Dec 1843 in Derby, Derbyshire, England. Sarah (daughter of Brelsford, Paul and Fretwell, Dorothy) was born in 1823 in Derbyshire, England; died on 25 March 1886 in Derby, Derby Unitary Authority, Derbyshire, England; was buried in Chaddesden, Derby Unitary Authority, Derbyshire, England. [Group Sheet] [Family Chart]

1. Thornhill, Christopher was born in April 1845 in Darley Abbey; died on 29 Jul 1915 in Derby, Derbyshire.
2. Thornhill, Lydia was born on 26 Aug 1848 in Little, Cheshire, England; died in April 1851 in Derby, Derbyshire; was buried on 9 May 1851 in Derbyshire, England.
3. Thornhill, Selina was born on 14 Oct 1851 in Little Chester, Derbyshire, England; died on 27 May 1916 in Portsmouth, Hampshire, England.
4. Thornhill, Emily was born in January 1854 in Little Chester, Derbyshire, England.
5. Thornhill, Rebecca was born in July 1858 in Little Chester, Derbyshire, England.
6. Thornhill, Thomas William was born in 1861 in Little Chester, Derbyshire, England; died in October 1863 in Derby, Derbyshire.