James married Mary A. Downing. Mary (daughter of Elizabeth Unknown) was born about 1827 in Dudley, Staffordshire, England; died after 1871. [Group Sheet]

1. Samuel Slater was born about 1859 in Dudley, Staffordshire, England; died after 1871.
2. Thomas Slater was born about 1861 in Dudley, Staffordshire, England; died after 1871.
3. Emma Slater was born about 1864 in Hasland, Chesterfield, Derbyshire, England; died after 1871.
4. Elizabeth Slater was born about 1866 in Hasland, Chesterfield, Derbyshire, England; died after 1871.
5. Sarah Ann Slater was born on 4 Apr 1869 in Chesterfield, Derbyshire, England; was christened on 29 May 1869 in Hasland, Chesterfield, Derbyshire, England; died between 1 Jan 1948 and 31 Mar 1948 in Chapel-en-le-Frith District, Derbyshire, England.