William married Mary Unknown. Mary was born about 1799 in Waterstock, Oxfordshire, England; died in Dec 1873 in Chalvey, Buckinghamshire, England; was buried on 17 Dec 1873 in St. Mary's, Upton cum Chalvey, Buckinghamshire, England. [Group Sheet]

1. Anne Anderson was born about 1829 in Chalvey, Buckinghamshire, England; was christened on 16 Jun 1831 in St. Mary's, Upton cum Chalvey, Buckinghamshire, England; died in Jul 1869 in Chalvey, Buckinghamshire, England; was buried on 14 Jul 1869 in St. Mary's, Upton cum Chalvey, Buckinghamshire, England.
2. Joseph Anderson was born about 1836 in Chalvey, Buckinghamshire, England; was christened on 1 Jan 1837 in St. Mary's, Upton cum Chalvey, Buckinghamshire, England; died in May 1875 in Eton Union, Upton cum Chalvey, Buckinghamshire, England; was buried on 26 May 1875 in St. Mary's, Upton cum Chalvey, Buckinghamshire, England.
3. Ellen Mary Anderson was born in 1839 in Chalvey, Buckinghamshire, England; was christened on 1 Sep 1839 in St. Mary's, Upton cum Chalvey, Buckinghamshire, England; died in Sep 1839 in Chalvey, Buckinghamshire, England; was buried on 29 Sep 1839 in St. Mary's, Upton cum Chalvey, Buckinghamshire, England.