It is difficult not knowing which part of wales, however
1851
George James Head 36 born St. Petrox, Pembrokeshire 1815
Martha James Wife 37 born Lamphey, Pembrokeshire 1814
George James son 1847 born St. Mary's Pembrokeshire
Elizabeth James daughter born St. Mary's Pembrokeshire 1849
William James son born St. Mary's Pembrokeshire 1850
EDWIN JAMES ,not described as son but AT MUSE, born St. Mary's Pembrokeshire 1850 6 months old
1861
George James 48 all same birth areas
Martha James 44
George James 14
Elizabeth James 12
William James 10
John James 8
NO MENTION OF EDWIN JAMES
Birth of Edwin James
www.freebmd.org.ukEDWIN JAMES June 1/4 1851 Haverfordwest 26 - 714 (part of Pembrokeshire
Not sure if this helps - need to know which county Edwin came from