William George Thomas was the son of David Tennent Thomas and Mary Ann Rees.

William was born on Sunday 10 August 1873 in 95, Croppers Hill, Eccleston, St Helens, Lancashire.

William married Margaret Howell Evans in 1908 in the Swansea Registration District (Dec. quarter).

He had the following children from his marriage to Margaret Howell Evans:

- William Lionel Thomas	born on 11 May 1910 at Swansea, Glamorganshire, Wales.
- Dudley Raymond Thomas	born on 9 January 1912 at Swansea, Glamorganshire, Wales.

The places where he lived have been identified as:

From	To	Place	Source of Information
1873	1881	95, Croppers Hill, Eccleston in Prescot, Lancashire.	Notes 1 & Census Data.
1891		7 Pemberton Avenue, Pembrey, Carmarthenshire.	Census Data.
1901		Sanctuary, Castle Street, Loughor, Glamorgan, Wales.	Census Data.
1911		9 Oaklands Terrace, Swansea, Glamorganshire, Wales.	Census Data.

William was a Civil and Mining Engineer, later a Builder and Timber Importer.

Details of William's death are not known.

Notes - Sources of information:

1.	Birth Certificate.

Census Data:

Year	Address
1881	95, Croppers Hill, Eccleston in Prescot, Lancashire.
1891	7 Pemberton Avenue, Pembrey, Carmarthenshire.
1901	Sanctuary, Castle Street, Loughor, Glamorgan, Wales.
1911	9 Oaklands Terrace, Swansea, Glamorganshire, Wales.
1939	9 Oaklands Terrace, Swansea, Glamorganshire, Wales.