Individual Details

The assumption I made was that each reference to a "Rush Hudson" indicated a reference to the same person. While this is a workable assumption, it may not be correct in this instance. There is a very real possibility that would also fit the scenario. This possibility also makes the point that an initial analysis may overlook potential clues.

Let's summarize the Rush Hudson references in the will of Sarah Turbervile:
--- A Rush Hudson is mentioned as the father of Mary and Elizabeth Hudson.
--- A "son Rush Hudson" is given a slave Winny and is named as the will's executor.
--- A "Rush Hudson Junr." is to receive the slave Winny upon the death of Rush Hudson, the son.

There is a reasonable chance that the Rush Hudson mentioned as Sarah's son is not the same Rush Hudson mentioned as the father of Mary and Elizabeth Hudson. It is possible that Sarah's "Hudson husband" was in fact named Rush and that these two daughters, Mary and Elizabeth, are his by a previous marriage. Sarah could easily have been their step-mother for the vast majority of their life and effectively been their mother. This situation would obviously preclude Mary and Elizabeth being the granddaughters of Sarah.

Child	Mary Hudson ( - )
Child	Elizabeth Hudson ( - )
Child	Rush Hudson Jr ( - )

Father	Rush Hudson (1704 - 1735)
Mother	Sarah (1685 - 1760)
Sibling	David Hudson ( - )
Sibling	Joshua Hudson ( - )