William married Alice Mary Maud Sherwood between 1 Apr 1882 and 30 Jun 1882 in Bradfield District, Berkshire, England. Alice (daughter of Isaac Sherwood and Maria Green) was born on 28 Nov 1865 in Streatley, Berkshire, England; died between 1 Jan and 31 Mar 1948 in Middlesex South District, Middlesex, England. [Group Sheet]

1. Minnie Maria Thatcher was born about 1883 in Mortimer, Berkshire, England; died after 1911.
2. Lucy Maud Thatcher was born about 1885 in Mortimer, Berkshire, England; died between 1 Apr 1909 and 30 Jun 1909 in Windsor District, Berkshire, England.
3. William George Isaac Thatcher was born about 1887 in Wokingham, Berkshire, England; died between 1 Jan 1927 and 31 Mar 1927 in Staines District, Middlesex, England.
4. George Thatcher was born between 1 Apr 1890 and 30 Jun 1890 in Staines, Middlesex, England; was christened on 20 Apr 1890 in St. Mary's, Staines, Middlesex, England; died after 1911.
5. Albert Edward Sherwood Thatcher was born on 8 Jun 1893 in Wraysbury, Buckinghamshire, England; was christened on 6 Aug 1893 in St. Andrew's, Wraysbury, Buckinghamshire, England; died between 1 Jan and 31 Mar 1980 in Surrey N District, Surrey, England.
6. Herbert John Sherwood Thatcher was born on 8 Jun 1893 in Wraysbury, Buckinghamshire, England; was christened on 6 Aug 1893 in St. Andrew's, Wraysbury, Buckinghamshire, England; died on 25 Oct 1918 in Robersart, Nord pas de Calais, France; was buried in Preux aux Bois Communal Cemetery, Nord pas de Calais, France.