Hey Mark,
They're my 7x g-grandparents so I have collated quite a few of sources for that family in my Ancestry tree. Unsure how we can exchange contact info privately in this forum.
The Silver records often have been transcribed as 'Silure', so include that in your searches as well.
BTW - I've recently been trying to find out the source of Sarah's 'Twist' in her name. It was always prominent in documents & signatures, and passed on to descendants, so was apparently important to her. The earlier records have Troistsilver or Troist-Silver & I thought it was of French origin, but troist isn't a word in French, as far as I know (possibly Dutch?).
Happy to let you see my tree. FamilySearch also updated for Sarah MMC9-S71.
Cheers, Carl