What was his occupation/birthplace please?Is Mary a widow in 1921?
Is the daughter you mention Mary Ann Young? Sorry bit in the dark here but if you can provide more detailed information for us happy to search further.
Was the child who died pre 1901 census Lilian aged 14?
If you are still looking, the workhouse is at RG13/3598 folio 91 page 1. Richard France is the workhouse master