Hello Heywood and Jaywit et al... 
#I only have bapt's for an Esther and a Jane at Forden workhouse, House of Industry. To a Mary Williams servant. That's it, no more info.
#They correspond to the girls with Thomas and Frances as 1871 census shows.
# The Charles (nephew) I thought, might link to a possible sibling to Frances.
Hence this Scavenger pre 1871 for Frances MA and Charles.
the girls are listed as step daughter and therefore
should be step daughter / daughter in law / adopted child of the head of the household who is Frances M husband so DFrances does appear to be Frances Mary as you have the chirstenings to confirm this
her marrige gives her father as Richard a coachman we need to find Richard Williams Coachman as near to the marriage date as possible.
we don' t know where Richard was from but we
think he died in Berriew
are there any Williams witnesses to the marriage? (i know this has been covered)
Esther we found in the previous census it doesnt seem to be any connection between esther and the familes she is with but has this been explored?
have you got the entry / discharge for forden workhouse ? does it survive?
Charles should be nephew to the head, did he have a sister who married a Williams ?
have you found Frances bp.? d/o Richard circa 1835 montogmeryshire ? of course she could be under Mary
we only now he was a coachman when Frances married so Richard may not have been a coachman before this