Daniel married Mary S. Davies between 1 Jan 1866 and 31 Mar 1866 in Neath District, Glamorgan, Wales. Mary was born about 1837 in Haverfordwest, Pembrokeshire, Wales; died after 1871. [Group Sheet]

1. Stephen Martel Prethroe John was born between 1 Apr 1866 and 30 Jun 1866 in Cwmavon, Glamorgan, Wales; died between 1 Jan 1941 and 31 Mar 1941 in Abergavenny District, Monmouth, Wales.
2. William Henry John was born between 1 Oct 1870 and 31 Dec 1870 in Cwmavon, Glamorgan, Wales; died after 1871.