Oh dear I have just typed everything up and then pressed the wrong key and it all disappeared
This is who I think it is in the 1871 census as the ages do tie up with the marriage and I can`t see any further suspects to fit the bill:
Lower Meadow Bank, Over, Cheshire
Joseph Stephens, Head, Mar, 38, Salt Maker, Germany
Ann, Wife, Mar, 25, Wigan Lancashire
Joseph, Son, 1, Over, Cheshire
I do suspect that Ann was born Glossop Derbyshire on the 1851 census aged 7 - Father Peter, mother Jane and they were living in Wigan.
Kind regards,
Mo