More on Martha Robuck
Martha was the daughter of John Robuck of Hollin(g)house, Fulstone.She was bapt 2 Nov 1726 so presumably John would have been born in the years just before the turn of the century - the oldest of what I take to have been her siblings was bapt 1718.
The Robucks were a yeoman family who lived at Hollinhouse for several generations.Morehouse in his History of Kirkburton (available as a full view on Google books) gives a pedigree of the Earnshaws of Holme in which Susanna (sister of Alderman Earnshaw whose bequest founded Holme school) married Joshua Kenworthy of Hades in 1676 (Almondbury PRs give his surname as Kennerley) and an unnamed daughter of this marriage married John Robuck of Hollinhouse.This Robuck couple, assuming they had children, could have been of the right generation to have been Martha's great grand-parents.
I can't yet find any children of the Kenworthy family in the PRs nor the Robuck marriage nor the Robuck children in the PRs so far.However a later Kenworthy family of Hades is mentioned several times in Arthur Jessop's diary with some suggestion that the then head of the family was associated with the Lydgate Presbyterian chapel.There is also a mention of the burial in 1741 of "old John Robuck" who could have been Martha's grandfather and this burial cannot be found in the PRs.It seems possible that several generations of these families were non-conformists whose register entries might not be readily accessible.
If the link can be made then Martha appears to have been descended from 3 local yeomanry families.