I think this is John WILLIAMS again at Joyford Hill on the 1861 census (Elizabeth, called Betsy)

1861 Census, West Dean Joyford Hill

WILLIAMS

John - 46 - Coal Miner, born St Briavels, Coal Miner Iron - LOCAL PREACHER METHODIST
Betsy - 42 - born Newland
Harriet - 16
Benjamin - 9 (Mother's maiden name JONES - (GlosBDM)
John

and the 1841 census - Joyford

John WILLIAMS - Coal Miner - 30
Elizabeth - 25
Emma - 1

This is the 1871 Census, West Dean,
Nine Wells

James GWILLIAM - 45 - Coal Miner
Harriet - 28
Lucy A -2

next door

John WILLIAMS -52 - born St briavels
Elizabeth - 54 - born West Dean
John - 15
Jane JONES, Niece, 11 - born St Briavels