Thomas married Sarah Anne EXON on 23 Dec 1897 in Llantwit Fardre, Glamorganshire, Wales. Sarah (daughter of Unknown EXON and Unknown GUNINGHAM) was born in 1875 in Pontypridd, Glamorganshire, Wales. [Group Sheet] [Family Chart]

1. Lily C JOHN was born in 1898 in Pontypridd, Glamorganshire, Wales.
2. William H JOHN was born in 1899 in Pontypridd, Glamorganshire, Wales.
3. Margaret O JOHN was born in 1901 in Pontypridd, Glamorganshire, Wales.
4. Hilda M JOHN was born in 1904 in Pontypridd, Glamorganshire, Wales.
5. Doris Ena JOHN was born in 1907 in Pontypridd, Glamorganshire, Wales.
6. Ethel Mary JOHN was born in 1910 in Pontypridd, Glamorganshire, Wales.
7. Phyllis B JOHN was born in 1913 in Pontypridd, Glamorganshire, Wales.
8. Doris Lorraine JOHN was born in 1915 in Pontypridd, Glamorganshire, Wales.
9. Haydn Thomas Preece JOHN was born on 15 Jul 1917 in Pontypridd, Glamorganshire, Wales; died on 6 May 2004 in Pembrokeshire, Wales; was buried on 15 May 2004 in Llanion Cemetery, Pembroke Dock, Pembrokeshire, Wales. Grave Ref. XJ/6.