Posting this on the off chance anyone may have Sarah in their tree. Finding a correct Jones here is like finding a needle in a haystack!! ;~)
(By here I mean locally as I live near Caersws)

She was born abt 1853 in Caersws. She was in service in Colwall Hereforshire [I believe].
She married my ancestor George Thomas Henry Hooper on 8 July 1876 in Ledbury.

They stayed living in that area [Colwall, Great Malvern, Malvern Wells]

I haven't yet purchased their marriage cert. I realise that will give me (hopefully!) further acurate info.

As I said, just on the offchance someone has a match.

Many thanks for reading.
xxx Sioux