I can not see any evidence of them being at a shop Just living next door to onein 1871.
Henry wife was Anne. He was put down as Wallen in 1841 and 1851.
I found a Henry Waller married to Anne Hall in 1839.Banbury District. This could be the marriage.
Seems transcriptions were awful lol.
They both came from Wigginton.
1851 Henry is a Ag Lab
1861 Ag lab & carrier
1871 Road labourer
Not sure if this is any help, but if i find anything else will let u know
1881 Eliza is a Domestic Cook, Servant
More Children to add if u check 1841, 1851 under Henry Wallen