In one census William James is said to be fishmonger born Bristol.... I've tended to dismiss it but if James born in Tendring is not the right one then perhaps Bristol is where we should be heading!
For info. for anyone else looking
1891c Brook Street, St James, Colchester, Essex
William James Head 1849
Bristol, Gloucestershire,
fishmongerEmma Wife 1854 Colchester, Essex
William Son 1877 Colchester
Elizabeth Dau 1879 Colchester
Emma Dau 1881 Colchester
Edward Son 1883 Colchester
1881c Vineyard Street, Colchester St Botolph, Colchester, Essex,
William James Head 1851
Great Clacton, Essex,
labourerEmma Wife 1857 Colchester, Essex
William Son 1877 Colchester
Elizabeth Dau 1879 Colchester
William James, 10, born Bristol, in 1861 census
Parents George and Sarah
https://www.familysearch.org/ark:/61903/1:1:M7KS-89P
details from the above 1861c link
George James Lodger 30 Bristol
Sarah James Wife. 31 Bristol
Elizabeth James Daughter 12 Bristol
William James Son 10 Bristol,
John James Son 4 Bristol
Does anyone else think this might be the christening for Elizabeth James
from the above 1861 census ?Elizabeth James 4
Mar 1849Bristol, St Philip and Jacob, Gloucestershire
parents
George & Sarahher possible birth registration from GRO indexes
Elizabeth JAMES
mmn HAZELL1849 M Quarter in BRISTOL Volume 11 Page 177
If it is the correct Elizabeth James from 1861 census posted it looks as if her brother William might be registered as George William
George William JAMES
mmn HAZELL1851 S Quarter in BRISTOL Volume 11 Page 183
Although I haven't found a matching birth entry mmn Hazell for their brother John James born c 1857 Bristol